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.

My mother doesn't run the house perfectly
What does mother do?
My students aren't very nice
Why are student very nice?
They don't run for bus every morning
What do they do every morning?
Luis does not have an interesting job
Why does Luis have interesting job?
The Normans didn't invite Britain in 1066
Who invited Britain in 1066?
We won't sigh this contract
Will you sigh this contract?