Przykład:
We have to feed the cat every day.
We don't have to feed the cat every day.
Do we have to feed the cat every day?
1. They have to clean the bathroom once a week.
They don't have to clean the bathroom once a week.
Do they have to clean the bathroom once a week?
2. He has to take the rubbish out.
He doesn't have to take the rubbish out.
Does he have to take the rubbish out?