1) You may come in.
2) He may go, I don't need him.
3) May I take this book?
4) May she go for a walk?
5) You may forget about my request.
6. Jack may be upset. I can't really tell if he is annoyed or tired.
7. Jack may have been upset. I couldn't really tell if he was annoyed or tired.
8. Jack may get upset if you don't tell him the truth.
9.May I make a phone call?
10.You may leave the table when you finish your dinner.