can must may could would need 肯定回答和否定回答 准确的

Question

如题所述

Answer 1

may, might
表示请求和允许。might比 may语气更委婉，而不是过去式。否定回答时可用can’t 或mustn’t，表示“不可以，禁止”。
----Might/ May I smoke in this room?
---- No, you mustn’t.
---- May/Might I take this book out of the room?
---- Yes, you can. (No, you can’t / mustn’t. )
用May I...？征徇对方许可时比较正式和客气，而用Can I...？在口语中更常见。
can could
-----Can I go now?
---- Yes, you can. / No, you can’t.
---- Could I come to see you tomorrow?
---- Yes, you can. ( No, I’m afraid not. )
must
---- Must we hand in our exercise books today?
---- Yes, you must.
---- No, you don’t have to / you needn’t.
need
作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。
You needn’t come so early.
---- Need I finish the work today?
---- Yes, you must. / No, you needn’t.
would
表示请求、建议等，would表示委婉
Will / Would you pass me the ball, please?
yes, of course.

Answer 2

楼上有错，应是can?can can't/cannot
could?can couldn't may?may can't must?must needn't不会有错，楼主给分，旁观赞

Answer 3

can cannot can't
must mustn't
may may not
could couldn't
would wouldn't
need needn't