No entendí si era 8 oraciones por cada pronombre, etc.
O si eran 8 oraciones en si como tal, pero espero y pueda ayudarte un poco con esto.
+ I'm a good student.
- I'm not a good student.
? Are you a good student?
+ You are very smart in english - You aren't very smart in english
?
Are you very smart in english?
+ He is a teacher of primary.
- He isn't a teacher of primary.
? Is he a teacher of primary?
+ It is a good movie.
- It isn't a good movie.
? Is it a good movie?
+ We are brothers - We aren't brothers
?
Are we brothers?
+ You are very serious - You aren't very serious
?
Are you very serious?
+ They are sisters - They aren't sisters
?
Are they sisters?