-> I will(shall) go to Athens tomorrow, won’t I ? Can = Be able to
Special Verbs
-> Will you help me ? No, I won’t.
-> Would you like to have a coffee ? No, I wouldn’t.
-> You should help your friends, shouldn’t you?
-> Shall we go out tonight ? No, we shan’t.
-> It may rain tomorrow, so they may not come.
-> he might come later, but she might not.
-> Can I come with you? No, you can’t.
-> We must work hard, mustn’t we?
-> I ought to visit them or I should visit them.
-> He used to smoke
-> need I come tomorrow ?
-> How dare you say such things !
->You should have told me the truth last week.
->We could have been killed last night.
-> If you had come, I would have seen you.
Must = have to