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could have done
could
have
done
可以表示对过去的推测吗?
答:
一般不用,
could
have
done
是表示过去本可以做而未做 表对过去推测的有 might/may have done ,must have done
高中英语
could
have
done
只表示过去可以做而未做,可是could have bee...
答:
情态动词+
have
+过去分词 1) may(might) have +
done
sth, can (
could
) have + done sth 表示过去,推测过去时间里可能发生的事情。2) must have +done sth,对过去时间里可能发生的事情的推测,语气较强,具有"肯定","谅必"的意思。3) ought to have done sth, should have done sth ...
...
have
done
should have done
could
have done 他们的意思到底 实 ...
答:
1.should
have
done
本应该做而实际未做,表示后悔的虚拟语气。2.shouln't have done 本不应该做而实际做了。如:he was very sad now. I shouldn't have scolded him.3.
could
have done 表示本可以(有能力)做,而实际未做。I could have finished my work on time, but I wasted...
couldn't
have
done
与couldn't区别
答:
couldn't表示不可能,无推测意而can有推测意译为可能。
could
have
done
有对过去的猜测意也有用做虚拟语气的用法可译为本可以去做...而couldn't have done 为could have done的否定式
may
have
done
与
could
have done意思一样吗?
答:
may / might
have
done
表示“过去可能做了某事”。注意:may/might have done表推测不能用于疑问句中 can/
could
have done 表推测一般用在否定句和疑问句中,表示不相信或怀疑的态度。意思都表猜测,但用于的情况不同。
could
't do 和could't
have
done
答:
could
't do是指:不能做,(指还没做)could't
have
done
是指:本不能做,(已经做过了)这样你就可应从意思上把他们区分开了~~~希望可以帮助你哦
情态动词加
have
+
done
的用法
答:
情态动词+
have
done
could
/would have done 1. 过去本来能够做但未实现:He could/would have finished it on time, but he was ill that day. (虚拟,*could表达惋惜之情)2. 肯定、否定、疑问句中表推测(可能性):Don't worry. They could have arrived home. / The guests would have ...
may
have
done
和
could
have done有什么区别?
答:
may
have
done
表示对发生过的事情的推测,意思是“可能已经”或“也许已经”,用于肯定句中。What
has
happened to George?I don't know.He may have got lost.乔治发生了什么事?我不知道,他可能迷路了。might have done 表示对过去事情的推测,might与may意思相同,但可能性更小,多用于虚拟语气...
I
couldhavedone
thistooifthing
had
beendifferent语法解释?
答:
这个句子的意思是,如果事情当初不一样的话,我也可以做到这个。很明显,这是一个虚拟语气。条件状语从句假设的是,不现实的过去的情况。具体分析如下,I 主句的主语
could
have
done
主句当中的谓语 this主句的宾语 too主句的状语 if 连词,引导条件状语从句 things 从句的主语
had
been从句的谓语,系...
情态动词+
have
done
表示什么意思?
答:
cann't
have
done
(过去)一定没有做过某事 He cann't have seen the film,because he doesn's know anying about it。(他一定没看过那部电影,因为他对它一无所知)注意:千万不能用mustn't ,因为它是“禁止,绝不可以”的意思
could
have done (过去)本来可以做成某事实际上却...
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