表示推测的用法
语法小贴士
表示推测的用法
can, could, may, might, must 皆可表示推测,其用法如下:
情态动词+动词原形
表示对现在或将来的情况的推测,此时动词通常为系动词:
I do not know where she is, she may be in Wuhan.
情态动词+动词现在进行时
表示对现在或将来正在进行的情况进行推测:
At this moment, our teacher must be correcting our exam papers.
情态动词+动词完成时
表示对过去情况的推测:
We must have finished this work by the end of next December.
The road is wet. It must have rained last night.
情态动词+动词的现在完成进行时
表示对过去正在发生事情的推测:
Your mother must have been looking for you.
推测的否定形式,疑问形式用can’t, couldn’t表示
Mike can’t have found his car -- he came to work by bus this morning.
注意: could, might表示推测时不表示时态,其推测的程度不如can, may。
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