1. My mother doesn't run the house perfectly.
Does my mother run the house perfectly?
Yes, she does.
2. My students aren't very nice.
Are my students (very) nice?
Yes, they are.
3. They don't run for the bus every morning.
Do they run for the bus every morning?
Yes, they do.
4. Lisa has not got a very interesting job.
Has Lisa got a very interesting job?
Yes, she has.
5. The Normans didn't invade Britain in 1066.
Did the Normans invade Britain in 1066?
Yes, they did.
6. We won't sign this contract.
Will we sign this contract?
Yes, we will.