HAVE TO Have to / Has to = it is necessary Don't have to / Doesn't have to = it isn't necessary AFFIRMATIVE SENTENCES affirmative sentences (+) NECESSITY: have to/has to means it is necessary. NEGATIVE SENTENCES
SUBJECT
MODAL
VERB
I you we they
have to
he she it
has to
clean get pick up have eat go work
SUBJECT
MODAL
VERB
negative sentences (-) LACK OF NECESSITY: don't have to/doesn't have to means it is not necessary. You have a choice.
I you we they
QUESTIONS
DO
he she it
work do clean eat work go doesn't have be to
don't have to
SUBJECT
Do
I you we they
Does
he she it
questions (?)
EXAMPLES I have to clean my room. You have to get a new book. We have to pick up the laundry. They have to have a notebook. He has to eat dinner now. She has to go to work now. It has to work. EXAMPLES I don't have to work on Saturday. You don't have to do that. We don't have to clean the car. They don't have to eat pizza. He doesn't have to work tomorrow. She doesn't have to go today. It doesn't have to be that way.
MODAL VERB
EXAMPLES
Do I have to clean my room? Do you have to get a clean new book? get Do we have to pick up pick up the laundry? Do they have to have a have to have notebook? eat go Does he have to eat work dinner now? Does she have to go to work now? Does it have to work?