Used to

Need to

To be used to Want to

Have to

Ought to

Used to

Negativo

Afirmativo

I used to play football

Slovenia used to be part of Yugoslavia

I used to live in London.

We didn't use to play football

Poland didn’t use to be part of the EU.

Interrogativo

Did you use to smoke?

What did people use to do before TV was invented?

Ought to

Estructura afirmativa

Sujeto + ought + to + "verbo principal en infinitivo"

1. We ought to tell him 2. He ought to do it

3. Tom ought to take her home.

Estructurainterrogativa

"Ought" + sujeto + to + verbo en infinitivo + ?

Do/Does+ sujeto + think + pronombre personal + ought + to+ verbo en infinitivo + ?

Ought he to write a letter?

Do you think he ought to write a letter?

Ought they to live there?

Sujeto+ don't/doesn't + think + pronombre personal + ought+ to + ver en infinitivo.

Estructuranegativa

Sujeto + ought + not (oughtn't)+ verbo en infinitivo

Ought to + have

You ought to have read the book for today.Deberían haber leído el libro para hoy.