1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 have done ,两者有区别吗?比如 He can’t have gone to Beijing for I saw him a minute ago. 能换成He couldn’t have gone to Beijing for I saw him a minute ago.吗?谢谢 ...
- "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“不可能已经做过某事”,它强调过去发生的某事已经不可能发生。例句:- I can't have left my keys at home. I remember putting ...
can't have done(不可能做过)是must have done(一定做过)的否定形式。 couldn't have done(可能没做过)是may have done(有可能做过)的否定形式。 一般认为can't have done有80%以上的把握.而couldn't have done则委婉的多,只有50%左右的把握. must do /can't do一定,肯定80%把握。 may/could do/c...
答案 couldn't 较 can't 委婉, 表示多半是由客观原因造成的不能做,而can't 的主观色彩相对浓一些. 结果二 题目 can't have done与could't have done的区别我知道这两个都表示过去不可能做过某事,但有什么区别啊?两个都出现选哪个啊 答案 couldn't 较 can't 委婉, 表示多半是由客观原因造成的不能做...
通过下面的表格我们了解下can't have done和couldn't have done的含义、发音和用法 接下来让我们看下can't have done和couldn't have done的用法区别: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 ...
解答一 举报 can't have done(不可能做过)是must have done(一定做过)的否定形式.couldn't have done(可能没做过)是may have done(有可能做过)的否定形式.一般认为can't have done有80%以上的把握.而couldn't have done则委... 解析看不懂?免费查看同类题视频解析查看解答 更多答案(2) ...
She couldn't have done it. 她不可能可以完成的.结果一 题目 could't have done和can't have done的区别 答案 给个例子吧,不同用处,自己消化.She can't have done it.我拒绝相信她真做了.She couldn't have done it.她不可能可以完成的.相关推荐 1could't have done和can't have done的区别 反馈...
could (不能用 can) have done 表示“过去本能够做某事却未做.” 注意:其否定形式 couldn't have done 没有虚拟语气的用法, couldn't have done 只能表推测,相当于 can't have done, 意为:“过去不可能做了某事.” 当表示推测时候 can/could have done 一般用在否定句和疑问句中,表示不相信或怀疑的态...
can't have done与could't have done的区别我知道这两个都表示过去不可能做过某事,但有什么区别啊?两个都出现选哪个啊 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 举报 couldn't 较 can't 委婉, 表示多半是由客观原因造成的不能做,而can't 的主观色彩相对浓一些. 解析看不懂?免费查看同类...
1、can have done 和could have done 的区别 can have done是表示应该做某事而没有做,所以既然知道没有做,那肯定是已经发生了。could have done 表示本能做而实际未做,是虚拟语气.2、can't have done和couldn't have done的区别 can't have done(不可能做过)是must have done(一定做过)的...