1) Are Peter and Paul in the garden?Peter and Paul aren't in the garden.
2) Is my friend Mary a student?My friend Mary isn't a student.
3) Is he at home?He isn't at home.
1) Are Peter and Paul in the garden?
Peter and Paul aren't in the garden.
2) Is my friend Mary a student?
My friend Mary isn't a student.
3) Is he at home?
He isn't at home.