a) The rules must be respected!
Your parents must be treated well
You must be a good girl,and listen to your parents!
b) She can't be fine,because she is sick.
Alina can't be home tonight!
I can't be with my mom,because she is working abroad.
c) John might be okay,if he goes to a hospital!
She might be fine!
My mom might be really generous,if she wants