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must be done和 must havebeen done
must have done 和must have been 的区别
都是对过去的猜测,二者的区别是什么?
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推荐答案 2020-03-19
其实就是be动词与do动词的区别,该用哪个与must无关;你可以考虑现在完成时、一般现在时、一般过去时该用哪个,照此办理
It must have rained last night.昨晚肯定下过雨.
You must have been tired after all this work.
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相似回答
must
be
done和
must
havebeen
done
答:
其实就是
be
动词与do动词的区别,该用哪个与
must
无关;你可以考虑现在完成时、一般现在时、一般过去时该用哪个,照此办理 It must have rained last night.昨晚肯定下过雨.You must have been tired after all this work.
must
be
后面是动原吗
答:
must 是情态动词,后面动原
must be
,be 已经是动词原形了。。如果是被动,就是
must be done
.完成的,就是
must have done
./must have been done.(表肯定推测)
不是
must
have been
done
吗?
答:
must
have been
done 和
must have been doing 是两个不同的概念。have been done 是现在完成时的被动语态,汉义:"已经被⋯"。have been doing 是现在完成进行时,表示动作从过去某一时间开始一直延续到现在。加了must 后可以表示推测。
must
have been
,must have been
done
,must have done三者的区别?
答:
must have
been 一定是已经xxx(做某件事)
must have been done
一定是已经完成了
must have done
一定完成 been指“被”,有been的句子就是被动句,某个动作被进行的意思。
情态动词有哪些?
答:
(1)情态动词+动词完成式:
must
have
done
(2)情态动词+动词进行式: must be doing (3)情态动词+动词完成进行式: must
have been
doing (4)某些情态动词的特殊用法: need 一、情态动词+动词完成式 情态动词+动词完成式即“情态动词+ have + done分词”,表示对过去行为或动作进行推测、...
must
加动词原形么
答:
must
后是跟动词原形,构成固定结构must+v 例如you must
do
your homework 你必须做家庭作业。--- 一句话记忆:must 是情态动词,情态动词后需要加动词,只能加动原。
will/
must
/would /have/
has
/must
have been
+ 过去分词各怎麼翻译...
答:
will
have been
done
表示将来要被做 would have been done 常用在虚拟语气,表示本要被做而没有做(记住在虚拟中的用法非常有用)
must
have been done 表示对过去的推测,一定被做……have/
has been
done 表示现在完成时的被动语态 译为:被……...
must
be和must
have been
有什么区别
答:
must
have been
和must be的区别在have。因为本句是指对过去情况的推测,所以必须要用“情态动词+动词的完成式”。have在这里表示是动作已经完成。所以must have been是对过去的事实的肯定猜测,must be是对现在事实的肯定猜测。例句:Sorry I made such a fool of myself last night. I must have ...
有
must
+
has
+
been
+
do
的用法?
答:
“
Must
has been
do” 不是一个正确的用法。应该使用 “
must
have been
done
” 来表示过去发生的某个动作或事件。“Must have been done” 是一种情态动词的完整形式,用于表示对过去发生的事情的推测或肯定。它由 “must”(必须)和 "have been ...
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