Ну что-то вроде этого:
I must do homework every day instead of Saturday.
I must drive my car careful.
He musts pass the exam the day after tomorrow.
I should visit a doctor because I have a headache.
They should be more attentive in the lab.
You should give your friends money back.
I may visit mi grandparents this Sunday.
I may read many books a day.
I need a pen to write a test.
He needs a bottle of water because it is hot outside.