We...
We have to arrive on time.
You...
You have to listen to your teacher.
You...
You have to do your homework.
You...
You have to be quiet.
You...
You have to get your parents' permission.
They....
They don't have to wear a school uniform.
You....
You don't have to be quiet.
You...
You don't have to get your parents permission.
You....
You have to bring a packed lunch.
They....
They don't have to bring a packed lunch.
He...
He doesn't have to do his homework.
She...
She doesn't have to listen to her teacher.
