Simple Past TenseWe use the simple past tense for events that happened or started andcompleted in the past and that have no relation with the present.

 

We use the simple past tense:

to describe an action that occurred in the past or at a specified time or the time is easily understood or already implied.

Example: We finished our final exam an hour ago. (NOT: We have/had finished our final exam anhour ago.)Example: My grandfather played for the Yellow Hornless Bull football team.Example: I ate a big spicy piece of pizza for my breakfast.

 

for an action that began and ended in the past.

Example: The dangerous criminal was recaptured after three months on the run.

 

to refer to an action completed regardless of how recent or distant in the past.

Example: Alexander Bell invented the telephone in 1876.Example: My brother joined the circus as a clown last week.

 

for an action done repeatedly, habitually or at regular times in the past.

Example: We saw the movie 'Titanic' several times at the cinema.Example: Brian was always a heavy drinker in the old days.Example: He phoned his mother every Sunday until her death.

 

for a state in the past.

Example: I felt very tired after a couple of games of tennis.

 

for a short event or action that comes or follows one after the other.

Example: We looked left and we looked right. Then we crossed the road.

 

to place emphasis on what we say, especially in response to some remark.

Example: "You didn't seem to help much." "I did help to clear the room of all the unwantedthings."

 

to talk about someone who has died.

Example: Arthur was a highly respected science-fiction writer.Example: He left all his money to charity.

 

in providing details or information about events that happened subsequent to news reports which, when first reported, are usually expressed in present perfect tense.

Example: Negotiations with the insurgent forces have broken down. The leader of the insurgent forces blamed the government for the break down. A government spokesman said the insurgent forces made unreasonable demands.

 

Regular and irregular verbs

We form the simple past tense of most verbs by adding –ed to the verb. These verbs are called regular verbs. Most verbs are regular verbs.

The simple past tense of some verbs does not end in –ed. These verbs are the irregular verbs.

The simple past tense irregular verbs can only be used in the positive, not negative.

For example: He kept all his money in the bank. (NOT: He did not kept all his money in the bank.)

Examples of regular verbs:

 Simple Past

add addedhand    handedjoin joinedshow showedtalk talked

 

There are many irregular verbs. Examples of irregular verbs are:

 Simple Past

bite bitcatch  caughtgo wentsee sawsteal stoleteach taught

 

The simple past tense of some irregular verbs does not change at all.

  Past simplebeat      beatcut cuthurt hurtput putshut shut

 

Regular verbs and irregular verbs as expressed in the affirmative and negative.

Regular verbs:Affirmative – He cycled to work.Negative – He did not cycle to work. (NOT: He did not cycled to work.)

Irregular verbsAffirmative – He stole her purse.Negative – He did not steal her purse. (NOT: He did not stole her purse.)

Note that was and were are forms of the verb be. Was is the simple past tense of am and is and is used with the pronouns I, he, she and it, and with singular nouns. Were is the simple past tense of are and is used with the pronounsyou, we and they, and with plural nouns.

 

Regular verbs in simple past tense forms:Most verbs when expressed in the simple past tense are formed by adding –ed to the end of the verbs. These verbs are called regular verbs. Examples: kiss – kissed; touch – touched.

If a verb ends with –e, only –d is added to change its tense to past simple. Example: live – lived

If a verb ends in –ie, add –d. Examples: lie – lied; belie - belied

If a verb ends in:

a vowel + –y, just add –ed. Examples: employ – employed; buoy – buoyeda consonant + –y, change the y to i and then add –ed. Examples: cry – cried; pry – pried.one vowel + one consonant and is a one-syllable verb, double the consonant and add –ed. Example: step - stepped; chop - chopped; can - canned

one vowel + one consonant, double the consonant only if the second syllable of a two-syllable verb is stressed (e.g.,preFER - preferred) but not if the first syllable of a two-syllable verb is stressed (e.g., WONder - wondered)

two consonants, just add –ed. Examples: pull – pulled; scold - scoldedtwo vowels + one consonant, don't double the consonant, add –ed.Examples: peep – peeped; leak - leaked; raid - raided

 

"Used to"We use the expression used to to refer to a past habit or situation that no longer exists. We use

the infinitive without to after 'used to.'

Example:I used to chase butterflies, but now I don't see any butterfly around.

  (NOT: I used to to chase butterflies, .....)

 She used to be scared of spiders, but now she keeps a pet spider.

  Did you used/use to live in a houseboat?

 Professor Crabby is never used to people arguing with him.

 

The passive formWe use the passive form of the simple past tense when the action is done to the subject. It is formed by using was/were + past participle.

Often the doer of the action is not mentioned or known.

Example: Last night the police station was broken into.

Sometimes we use the preposition 'by' to mention the person or thing that did the action.

Example: That old mighty tree was once struck by lightning.

When the same subject is used with two passive verbs, we leave 

http://www.myenglishgrammar.com/simple-past-tense.html

Simple Past TenseEnglish Grammar

The Simple Past Tense, often just called the Past Tense, is easy to use in English.

If you already know how to use the Present Tense, then the Past Tense will be easy.

In general, the Past Tense is used to talk about something that started and finished at a definite time in the past.

How to form the Past Tense in English

The main rule is that for every verb in English, there is only one form of it in the past tense. (The exception is the Past tense of To Be, which has two forms: was and were)

This is totally different from other languages such as Spanish, French, Italian etc. where you change the verb ending for every subject.

For example: The past tense of the verb want is wanted.Wanted is used as the past tense for all subjects/pronouns.

I wanted You wanted

He wanted

She wanted

It wanted

We wanted

They wanted

So you just have to learn one word to be able to use it in the past tense. In this case we just needed to learn the one word wanted which can be used for all subjects (or people).

Past Tense Regular Verbs

To change a regular verb into its past tense form, we normally add –ED to the end of the verb.

play – played cook – cooked

rain – rained

wait – waited

There are some exceptions with a slight change in spelling which you can see here:Spelling of words ending in ED.

Examples of sentences using regular verbs in the past tense

Last night I played my guitar loudly and the neighbors complained. She kissed me on the cheek.

It rained yesterday.

Angela watched TV all night.

John wanted to go to the museum.

Note: There are three different ways of pronouncing the –ed at the end of a verb in the past tense.We recommend reading our guide about the pronunciation of –ED at the end of words.

Negative sentences in the Past Tense

We use didn’t (did not) to make a negative sentence in the past tense. This is for regular AND irregular verbs in English. (Exception is To Be and Modal Verbs such as Can)

Compare the following:

Present: They don’t live in Canada.Past: They didn’t live in Canada.

The main verb (live in the example above) is in its base form (of the infinitive). The auxiliary DIDN’T shows that the sentence is negative AND in the past tense.

NOTICE: The only difference between a negative sentence in the present tense and a negative sentence in the past tense is the change in the auxiliary verb.

Both don’t   and   doesn’t  in the present tense become didn’t in the past tense.

Compare the negative sentences in the examples below:

Present: You don’t need a mechanic.Past: You didn’t need a mechanic.

Present: You don’t walk to work.Past: You didn’t walk to work.

Present: He doesn’t speak Japanese.Past: He didn’t speak Japanese.

Examples of negative sentences in the Past Tense

I didn’t want to go to the dentist. She didn’t have time.

You didn’t close the door.

He didn’t come to my party.

They didn’t study so they didn’t pass the test.

We didn’t sleep well last night.

Questions in the Past Tense

We use did to make a question in the past tense. This is for regular AND irregular verbs in English. (Exception is To Be and Modal Verbs such as Can)

Compare the following:

Present: Do they live in France?Past: Did they live in France?

The main verb (live in the example above) is in its base form (of the infinitive). The auxiliary DID shows that the question is in the past tense.

NOTICE: The only difference between a question in the present tense and a question in the past tense is the change in the auxiliary verb.Both Do   and   Does  in present tense questions become Didn’t in past tense questions.

Compare the questions in the examples below:

Present: Do you need a doctor?Past: Did you need a doctor?

Present: Do you ride your bike to work?Past: Did you ride your bike to work?

Present: Does he live in Italy?Past: Did he live in Italy?

We can also use a question word (Who, What, Why etc.) before DID to ask for more information.

Did you study? – Yes, I did. When did you study? – I studied last night.

Where did you study? – I studied at the library.

Read more about short answers in the past tense.

Examples of Questions in the Past Tense

Did you go to work yesterday? Did they arrive on time?

Did she like the surprise?

Where did she go?

What did you do yesterday?

What did you say? - I didn’t say anything.

Why did we have to come?

Irregular Verbs in the Past Tense

Irregular verbs are ONLY irregular in affirmative/positive sentences.(An exception to this is with the verb TO BE in the Past Tense).

For example: The past tense of GO is WENT.It does not end in –ED so it is considered irregular.

The word went is used for all subjects – I, you, we, they, he, she, it.

I went to the beach He went to the park.

She went to the zoo.

They went to the library.

BUT, as we mentioned before, it is only in its irregular form (went) in sentences that are affirmative/positive.

Compare the following using GO in the past tense.

They went to the beach They didn’t go to the beach --- Didn’t shows that we are talking in

the past tense.

Did  they go to the beach? --- Did shows that we are talking in the past tense.

Another example with an irregular verb.The past of EAT is ATE.

You ate my cake. You didn’t eat my cake.

Did  you eat my cake?

Present vs Past Tense Summary Chart

http://www.grammar.cl/english/past-tense.htm

To Be - Past TenseEnglish Grammar Notes

To Be - Affirmative

Subject To Be Examples

I was I was tired this morning.

You were You were very good.

He was He was the best in his class.

She was She was late for work.

It was It was a sunny day.

We were We were at home.

You were You were on holiday.

They were They were happy with their test results.

To Be - Negative Sentences

The negative of To Be can be made by adding not after the verb (was or were).

Subject To Be Examples

I was not I was not tired this morning.

You were not You were not crazy.

He was not He was not married.

She was not She was not famous.

It was not It was not hot yesterday.

We were not We were not invited.

You were not You were not at the party.

They were not They were not friends.

To Be - Negative Contractions

The can make negative contractions of the verb To Be in the Past tense by joining the verb (was or were) and n't (e.g. were not = weren't). We don't make a contraction of the subject and the verb (e.g. I was).

I was not tired this morning. OR I wasn't tired this morning.

You were not crazy. OR You weren't crazy.

He was not married. OR He wasn't married.

She was not famous. OR She wasn't famous.

It was not hot yesterday. OR It wasn't hot yesterday.

We were not invited. OR We weren't invited.

You were not at the party. OR You weren't at the party.

They were not friends. OR They weren't friends.

* Notice that we don't have contractions for To Be in Past Tense affirmative sentences.

To Be - Questions

To create questions with To Be, you put the Verb before the Subject.

Affirmative You were happy.

  Subject Verb  

 

Question Were you happy?

  Verb Subject  

Affirmative Question

I was late Was I late?

You were sick. Were you sick?

He was surprised. Was he surprised?

She was from Italy.Was she from Italy?

It was a big house. Was it a big house?

We were ready. Were we ready?

You were early. Were you early?

They were busy. Were they busy?

To Be - Short Answers

In spoken English, we usually give short answers in response to questions.

Was he from Japan? - Yes, he was (from Japan). The last part (from Japan) is not necessary. We use shorts answers to avoid repetition, when the meaning is clear.

Question Short Answers** Short Answers

Was I late? Yes, you were. No, you weren't.

Were you sick? Yes, I was. No, I wasn't.

Was he surprised? Yes, he was. No, he wasn't.

Was she from Italy? Yes, she was. No, she wasn't.

Was it a big house? Yes, it was. No, it wasn't.

Were we ready? Yes, we were. No, we weren't.

Were you early? Yes, we were. No, we weren't.

Were they busy? Yes, they were. No, they weren't.

** With To Be, We don't use contractions in affirmative short answers.

http://www.grammar.cl/Past/To_Be.htm

How do we use the Past Simple Tense?We use the past simple tense to talk about an action or a situation - an event - in the past. The event can be short or long.

Here are some short events with the past simple tense:

The car exploded at 9.30am yesterday.She went to the door.

We did not hear the telephone.Did you see that car?

past present future

 

The action is in the past.

   

Here are some long events with the past simple tense:

I lived in Bangkok for 10 years.The Jurassic period lasted about 62 million years.

We did not sing at the concert.

Did you watch TV last night?

past present future

 

The action is in the past.

   

Notice that it does not matter how long ago the event is: it can be a few minutes or seconds in the past, or millions of years in the past. Also it does not matter how long the event is. It can be a few milliseconds (car explosion) or millions of years (Jurassic period). We use the past simple tense when:

the event is in the past the event is completely finished

we say (or understand) the time and/or place of the event

In general, if we say the time or place of the event, we must use the past simple tense; we cannot use the present perfect.

Here are some more examples:

I lived in that house when I was young. He didn't like the movie.

What did you eat for dinner?

John drove to London on Monday.

Mary did not go to work yesterday.

Did you play tennis last week?

I was at work yesterday.

We were not late (for the train).

Were you angry?

Note that when we tell a story, we usually use the past simple tense. We may use the past continuous tense to "set the scene", but we almost always use the past simple tense for the action. Look at this example of the beginning of a story:

"The wind was howling around the hotel and the rain was pouring down. It was cold. The door opened and James Bond entered.

Hetook off his coat, which was very wet, and ordered a drink at the bar. He sat down in the corner of the lounge and quietlydrank his..."

This page shows the use of the past simple tense to talk about past events. But note that there are some other uses for the past simple tense, for example in conditional or if sentences.

http://www.englishclub.com/grammar/verb-tenses_past_u.htm

Simple Past TenseI sang

The simple past tense is sometimes called the preterite tense. We can use several tenses to talk about the past, but the simple past tense is the one we use most often.

In this lesson we look at the structure and use of the simple past tense, followed by a quiz to check your understanding:

Structure: how do we make the simple past tense? Use: how do we use the simple past tense?

Simple Past Quiz

How do we make the Simple Past Tense?

To make the simple past tense, we use:

past form onlyor

auxiliary did + base form

Here you can see examples of the past form and base form for irregular verbs and regular verbs:

 V1base

V2past

V3past participle

 

regular verb

workexplodelike

workedexplodedliked

workedexplodedliked

The past form for all regular verbs ends in -ed.

irregular verb

goseesing

wentsawsang

goneseensung

The past form for irregular verbs is variable. You need to learn it by heart.

You do not need the past participle form to make the simple past tense. It is shown here for completeness only.

 

The structure for positive sentences in the simple past tense is:

subject + main verb

    past

The structure for negative sentences in the simple past tense is:

subject + auxiliary verb + not + main verb

    did base

The structure for question sentences in the simple past tense is:

auxiliary verb + subject + main verb

did       base

The auxiliary verb did is not conjugated. It is the same for all persons (I did, you did, he did etc). And the base form and past form do not change. Look at these examples with the main verbs go and work:

  subject auxiliary verb   main verb  

+

I     went to school.

You     worked very hard.

-

She did not go with me.

We did not work yesterday.

?

Did you   go to London?

Did they   work at home?

Exception! The verb to be is different. We conjugate the verb to be (I was, you were, he/she/it was, we were, they were); and we do not use an auxiliary for negative and question sentences. To make a question, we exchange the subject and verb. Look at these examples:

  subject main verb    

+

I, he/she/it was   here.

You, we, they were   in London.

-

I, he/she/it was not there.

You, we, they were not happy.

?

Was I, he/she/it   right?

Were you, we, they   late?

How do we use the Simple Past Tense?

We use the simple past tense to talk about an action or a situation - an event - in the past. The event can be short or long.

Here are some short events with the simple past tense:

The car exploded at 9.30am yesterday.She went to the door.

We did not hear the telephone.Did you see that car?

past present future

 

The action is in the past.    

Here are some long events with the simple past tense:

I lived in Bangkok for 10 years.The Jurassic period lasted about 62 million years.

We did not sing at the concert.Did you watch TV last night?

past present future

 

The action is in the past.    

Notice that it does not matter how long ago the event is: it can be a few minutes or seconds in the past, or millions of years in the past. Also it does not matter how long the event is. It can be a few milliseconds (car explosion) or millions of years (Jurassic period). We use the simple past tense when:

the event is in the past the event is completely finished

we say (or understand) the time and/or place of the event

In general, if we say the time or place of the event, we must use the simple past tense; we cannot use the present perfect.

Here are some more examples:

I lived in that house when I was young. He didn't like the movie.

What did you eat for dinner?

John drove to London on Monday.

Mary did not go to work yesterday.

Did you play tennis last week?

I was at work yesterday.

We were not late (for the train).

Were you angry?

Note that when we tell a story, we usually use the simple past tense. We may use the past continuous tense to "set the scene", but we almost always use the simple past tense for the action. Look at this example of the beginning of a story:

"The wind was howling around the hotel and the rain was pouring down. It was cold. The door opened and James Bond entered. He took off his coat, which was very wet, and ordered a drink at the bar. He sat down in the corner of the lounge and quietly drank his..."

This page shows the use of the simple past tense to talk about past events. But note that there are some other uses for the simple past tense, for example in conditional or if sentences.

https://www.google.com.my/#q=simple+past+tense+notes+

Simple Past Tense #3, by Dennis Oliver

 Simple Past Tense #3

  In English, the simple past tense is used for finished actions or situations that began and ended beforenow. There are three ways to make simple past tense.One way is what happens with the verb be: am andis change to was and are changes to were. A secondway is what happens with regular verbs: most regularverbs add - d or - ed to the base (simple) form, but

some verbs ending in y change i and then add - ed.

The third way is for irregular verbs.______________________________The Simple Past: Irregular Verbs

  Irregular verbs do not make their past tense by adding- d or - ed or by changing y to i and adding ed. Instead,they make their past forms in several ways:

1.   For some irregular verbs, the simple and pastforms are the same. Here are a few examples:

Simple

beatbetburstcostcuthithurtletputset

  Past

beatbetburstcostcuthithurtletputset

     2.   For many irregular verbs, the simple and

past forms have different vowels. Hereare a few examples:

Simple

arisebecomebeginbreakchoosedigdraweatfallfeedfindflyforgetfreezegetgive

  Past

arosebecamebeganbrokechosedugdrewatefellfedfoundflewforgotfrozegotgave

hideholdknowleadliemeetrideringrisetaketearweave

hidheldknewledlaymetroderangrosetooktorewove

     3.   For many irregular verbs, the simple verb

and the past form have different endings(and often different vowels):

Simple

bendbringbuildbuycatchcreepdo (does)feelhave (has)losemakemeanpaysayseeksleepspendstandteachtellthink

  Past

bentbroughtbuiltboughtcaughtcreptdidfelthadlostmademeantpaidsaidsoughtsleptspentstoodtaughttoldthought

     4.   A few irregular verbs have more than one

past form. Here are a few examples:

Simple

dream

  Past

dreamed, dreamt

fitkneelleaplightshinespeedspitwake

fit, fittedknelt, kneeledleaped, leaptlit, lightedshone, shinedsped, speededspit, spatwoke, waked

     5.   For a few irregular verbs, one past form

tends is more common in American Englishand a different one is more common inBritish English:

Verb

burnleanlearnsmellspoil

  American

burnedleanedlearnedsmelledspoiled

   British

burntleantlearntsmeltspoilt

     6.   The common irregular verb go has a completely

different past form:

Simple

go

  Past

went

   

____________________________________________

 

Special Notes:

1. 

The simple and past forms of read have the samespelling, but they are pronounced differently:

simple: read (pronounced the same as reed)past: read (pronounced the same as red)

     

2.   There are no easy rules to help you learn the pastforms for irregular verbs quickly. Unfortunately,you will have to memorize them!

http://www.eslcafe.com/grammar/simple_past_tense03.html

Simple Past Tense #2, by Dennis Oliver

  

Simple Past Tense #2  English uses verbs in the simple past tense to refer to

actions, situations, or events that are finished and thathappened before now. There are three ways to formsimple past tense in English. One way is what happenswith the verb be: it uses the special forms was and were.Another way is what happens with regular verbs.(They are called regular because they all add the sameending--ed--or some variation on it.)

______________________________The Simple Past: Regular Verbs

  Regular verbs make their past tense by adding - d, - ed,or (if the verb ends in a consonant + y), changing the yto i and then adding - ed.

Examples:

Add -d:    baked, cared, eased, filed, greased,hated, liked, piled, raced, seized,smiled, typed, wheezed, whined

     Change yto i andadd -ed:

  apply / applied;bury / buried;cry / cried;fry / fried;hurry / hurried;marry / married;pry / pried;spy / spiedtry / triedvary / variedworry / worried

     Add -ed:    other regular verbs:

asked, belonged, clapped,dialed, filled, guessed,hopped, looked, marked,needed, pulled, reached,started, touched, viewed,washed, yelled, zipped

__________________________________________

 

Special Notes:

1.   Add only - d if a regular verb ends in one or morevowels, a single consonant (except x), and e. Seethe examples above.

     2.   If a regular verb ends in a single vowel and a single

consonant (except x), double the consonant beforeyou add -ed:

beg / begged; clap / clapped; fan / fanned;hop / hopped; jog / jogged; mar / marred;pin / pinned; rip / ripped; slam / slammed;tan / tanned; whip / whipped; zip / zipped

Compare these verbs:

hop / hopped and hope / hoped;pin / pinned and pine / pined

file / filed and fill / filled;like / liked and lick / licked

     3.   If a regular verb has two or more syllables, if the

verb ends in l or r, and if the last syllable is stressed,double the l or r before you add -ed:

compél / compelled;confér / conferred;contról / controlled;defér / deferred;fulfíl / fulfilled;prefér / preferred;propél / propelled

If a regular verb has two or more syllables, if theverb ends in l or r, and if the last syllable is notstressed, do not double the l or r, before you add -ed:

cáncel / canceled;hónor / honored;súffer / suffered;trável / traveled

Note that British spelling does not use this rule.     4.   If a regular verb ends in a consonant and y (or if

the final syllable of a regular verb ends in this way),change the y to i and then add -ed:

apply / applied; bury / buried; cry / cried;copy / copied; defy / defied; fry / fried;falsify / falsified; hurry / hurried; modify / modified; pity / pitied; qualify / qualified; reply / replied;spy / spied; supply / supplied; try / tried

     5.   If a regular verb ends in a vowel and y (or if the

final syllable of a regular verb ends in this way),do not change the y to i and then add -ed:

annoy / annoyed; dismay / dismayed; enjoy / enjoyed; obey / obeyed; play / played; stay / stayed

     6.   If a regular verb ends in x, add only - ed. Do not

double the x:

box / boxed; fax / faxed; mix / mixed; tax / taxed     7.   Regular verbs ending in other spelling patterns usually

add -ed.____________________

http://www.eslcafe.com/grammar/simple_past_tense02.html

The Past Simple Tense

The past simple tense is most often used for the following:

- For actions that happened in the past- In reported speech- In conditional sentences

How to form the past simple

For actions that happened in the past

The past simple is the most usual tense for talking about things that happened or have finished before now. Very often we use a word or expression of finished time with this tense. In the following example sentences the expressions of finished time are shown in bold:

She came to Germany two years ago. It rained every day for a week on my vacation.

Columbus discovered America in 1492.

I played tennis at the weekend.

I didn't see you yesterday. Were you in school?

My mother went shopping on Saturday but she didn't buy anything.

I felt embarrassed when the teacher asked an easy question but I didn't know the answer.

The weather was bad this afternoon* so we didn't have a picnic as planned.

How did you do that?

Did you see the film on TV last night?

Why didn't you do your homework?

* In this sentence the speaker is talking in the evening, so for her this afternoon is finished time.

In reported speech

In reported speech it is common to shift the tense back. So for example, if someone said something to you in the present tense, you would report it in the past tense. Look at these examples. In each case the first sentence is direct speech and the second sentence is in reported speech. The verbs in the past simple form are shown in bold.

She said: "I live in Frankfurt."She told me she lived in Frankfurt. *

He said: "I can speak 5 languages."He said he could speak 5 languages.

The new girl said: "My father is a millionaire!"The new girl told me her father was a millionaire but I don't believe her!

She said: "My mother doesn't like German food."She said her mother didn't like German food.

He said: "I don't feel well."He said he didn't feel well.

She asked: "Do you like ESL lessons?"She asked me if I liked ESL lessons.

The teacher said: "Do you know the answer?"The teacher asked me if I knew the answer.

* It is common in modern spoken English to NOT change the tense if you believe that what someone told you is still true. So, for example, we could say:

She said she lives in Frankfurt. She told me her mother doesn't like German food.

In conditional sentences

The past simple tense is used in conditional 2 sentences. Have a look at some examples before reading the explanation about what the conditional 2 is. The verbs in past simple form are shown in bold.

I would help you if I had time! If I were the teacher I would give lots of homework every day!

What would you buy if you won a lot of money?

If you bought a calculator, you wouldn't have to borrow mine all the time!

If you didn't eat so much junk food, you would be a lot fitter!

I would be much happier if you didn't do that!

The past simple (conditional 2) is used in these sentences to express the idea of something that is not true or that the speaker thinks is unlikely to happen. So, in the first 3 sentences above, the interpretations would be:

I don't have time .. I am not the teacher ..

I don't think it is likely you will win a lot of money ..

http://esl.fis.edu/grammar/rules/pastsimp.htm