We don't have to take the elevator.
If you finish the test early, you don't have to stay in the room.
Yo don't have to get up early on Sunday.
Students don't have to use a pen for the test.
She doesn't have to pay in cash.
I don't have to cook every day.
I don't have to type my homework.
She doesn't have to turn in her homework today.
Students don't have to sit in specific seats for the test.
He doesn't have to return the paperwork personally.
I don't have to use the stove to warm up the food.
We don't have to dress formal to work this coming Friday.
She can use a credit card.
We can wear casual clothes.
She can give it to the teacher tomorrow morning.
We can take the stairs.
I can write it by hand.
They can choose any seat they want.
You can stay up late Saturday night.
He can send it by mail.
I can use the microwave.
You can leave.
I can go to a restaurant.
They can use pencils.
