Question

can的否定形式“cannot”为什么要连起来

Answer 1

!注意下.can是情态动词.不是助动词啦.

do not/don't

must not/mustn't

needn't(情态动词)/don't need(实意动词)

may not

have not/haven't

am not

are not/aren't

is not/isn't