HAVE TO / DON’T HAVE TO

HAVE TO

We use HAVE TO to express obligation (when something is necessary) in the present or future.

The boys have to study hard.

The boy has to wake up at 7 o’clock in the morning.

DON’T HAVE TO We use DON’T HAVE TO to express absence of

obligation (=when something is not necessary) in the present or future.

The children don’t have to go to school today. It’s Saturday!

She doesn’t have to eat all the fruits.

QUESTIONS

Do you have to eat the vegetables?Yes, I do.

Complete with the correct form of Have to Sarah_________ study hard for the exam. David ________clean his bedroom. His

mother has already cleaned it. I __________ paint my house. It’s very

dirty. Astronauts__________ learn lots of new

things. Caroline _________ finish the project

now. It’s for next week.