must have done 和 must do 有什么区别!哪一个是表示对过去的猜测呢?
来源:百度知道 编辑:UC知道 时间:2024/09/23 18:23:06
must have done 表示对过去的猜测
must do 表示应该做
前一个是表示对过去的猜测,后者只是说必须要做某事,是非常肯定的。
路过。学习。
must do 必须做
must have done 表示对过去做过什么进行猜测
must+have done 句型
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I must have done something right.这一句应该怎么翻译?
有没有must not have done的说法呀~~
have done
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have been done和 have done
have done and have been done