1) They don’t
have to do this work themselves.
2) You may take my dictionary.
3) You don’t look well, you should consult the doctor.
4) Why should I give you my money?
5) She cannot speak any foreign language.
6) He ought to help them, they need his help.
7) Could you tell me the time?
8) Must I go with you? No, you needn’t.
9) Your
daughter would have told about it.