1 My father is a worker.

My father isn't a worker.

Is my father a worker?

My  father is a worker, isn't he?

2 he is an engineer now.

Is he an  engineer now?

He isn't a worker now.

He is a worker, isn't he?

3 These children are little.

Are these children little?

These children are little, aren't they?

These children aren't little.

4 You  are my best friend.

You aren't my best friend.

Are you my best friend?

You are my best friend, aren't you?

5 Your daugter is a pupil

. Your daughter isn't  a pupil.

Are your daughter a pupil?

Your daughter  is a pupil, isn't she?

6 I am a studen.

I amn't a student.

Are you a student?

I am a student,  amn't I?

7 They are good boys.

They aren't good boys.

Are they good boys?

They are a good boy, aren't they?

8

Our mother is a teacher.

Is our mother a teacher?

 Our mother is a teacher, isn't she?

Our mother isn't a teacher.