PRESENT affirmative negative interrogative I have to study.. I don’t have to do it.. Do I have to swim?. You have to read a book.. You don’t have to call her.. Do you have to study?. He
Trang 1PRESENT affirmative
negative
interrogative
I have to study.
I don’t have to do it.
Do I have to swim?
You have to read a book.
You don’t have to call her.
Do you have to study?
He has to finish it.
PAST affir mative
negative
interrogative
FUTURE affirmative
negative
interrogative
Even Martians have to learn how to use computers A Martian has
to know earth language too
Have to : It is necessar y
I don’t have to: It’s not Has to/have to = it is necessary