要 情态动词 can may must need的肯定否定回答

问题描述:

要 情态动词 can may must need的肯定否定回答

can 肯定回答 yes,I can. 否定回答No,I can't.
may肯定回答 yes,I can. 否定回答No,I can't.
must肯定回答 yes,I will. 否定回答No,I won't.
need肯定回答 yes,I need. 否定回答No,I needn't.

can:yes,you can /no,you can't
may:yes,you may/no you can't
must:yes,you must/ no,you needn't or no,you don't have to.注意mustn't是禁止的意思.
need:yes,you need/no you needn't