Question

5. No one has seen God, ......?
6. Nobody has ever said so, ......?
7. She does nothing, ......?​

Answer 1

5. No one has ever seen God, have they?

6. Nobody has ever said so, have they?

7. She does nothing, does she?

I have apparently put them in positive way because the phrase before is in negative

hope it helps ☺️