can may must should have to need 的区别

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can may must should have to need 的区别

must
have to 表示客观的需要
eg.Tom,come out to play with us.
Sorry,my mom said i have to finish my homework first.
eg.Do you have to leave now?
yes,i must
eg Do i have to eat it up,mom?
no,you needn't

可能(一般口语),或许,必须(主动),能(语气比较缓和),不得不(被动),需要(有选择性)

can may must should have to need 的区别