从释义,用法,使用环境,形象和影响范围五个维度分析can't have done和couldn‘t have done的区别,详细内容如下。 1. 释义区别: - "can't have done"的字面意思是“不可能已经做过某事”,它表示主观上持有不可能或不太可能某种行为或事件已经发生的观点。 - "couldn't have done"的字面意思是“不可能已经做...
情态动词can't have done 和couldn't have done 有什么区别吗对过去发生的事情否定猜测用can't have done 或couldn't
1.情态动词的不同：can't是can not的缩写形式，表示不可能；couldn't是could not的缩写形式，也表示不可能 例子：- I can't have gone to the party last night.(我昨天晚上不可能去参加派对。)- He couldn't have got the secret.(他一定没有得到这个秘密。)2.时间的不同：can't have do...
couldn't 不行. couldn't have done可以用于 和过去事实相反的虚拟语气,can't have done 不行 比如:If you hadn't gone to the party,you couldn't have met your future wife. 如果你没去晚会,你不可能遇到你未来的妻子. 喜欢的话, 分析总结。 如果你没去晚会你不可能遇到你未来的妻子结果...
can't have done (过去一定没做...)，是对过去推测的否定形式。例如: I saw her just now，she can't have gone to Beijing. 我刚才看见她的，她不可能去了北京。couldn't have done是虚拟语气，表达与过去的事实相反。例如: If I hadn't been told，I couldn&...
她们两个表示不可能的时候，是同样的意思，只是 can't have done 表示的事情更接近于说话时而已，比如 can u look at my article, i'm quite sure i can't have found any bugs.can't have done 还有另外一个意思就是表示 允许，责任之类的否定意思，couldn't have done 没有这个意思。相当...
couldn't have done和can't have done都表示不可能，对过去情况推测 比如He can't / couldn't have worked out the problem. 他不可能解决了这个难题。can't 也可以用于对现在情况推测。 He can't be very smart couldn't 不行。couldn't have done可以用于 和过去事实相反的虚拟语气， can'...
1can't/couldn't have done的意思 是 本来不可能做某事结果做了 还是 表示过去动作不可能发生? 这两者又有can't/couldn't have done的意思是 本来不可能做某事结果做了 还是 表示过去动作不可能发生?这两者又有什么区别呢 2 can't/couldn't have done的意思 是 本来不可能做某事结果做了 还是 表示过去...
can't/couldn't have的意思 can't/couldn't have done的意思 是 本来不可能做某事结果做了 还是 表示过去动作不可能发生?
解析 can have done \ could have done 用于表示对过去发生的事进行猜测,CAN 只能用于疑问句,否定句,其他情况用COULD,例如WHERE CAN SHE HAVE GONE?SHE CAN HARDLY HAVE GONE TO CHURCH.SHE COULD /MIGHT/MAY HAVE GONE S...结果一 题目 有没有can have done sth?could have done sth有两种意思吗?can't...