could not have done是什么意思?1、本不能做某事却做了2、不可能做某事 是上面哪一个?还是两个都是?还是都不是? 答案 两个都是,但常表示“本不能做某事却做了”.表示“不可能做某事”是对过去事情的推测.eg:He couldn't have failed the exxam,and he studied hard recently.相关推荐 1could not have...
could not have done的缩写形式是couldn't have done，是may have done的否定形式。couldn't have done表示不可能，是对过去情况的推测。couldn't have done不仅可以表示过去完成时的否定，还可以表示虚拟语态，表达与过去的事实相反。could not have done的用法及举例 couldn't have done表示不可能的，是对过去情...
应该是can not have done 和 could not have done 吧 情态动词 + have done 动词+ 动词完成式即“情态动词 + have + done”,表示对过去行为或动作进行推测、评论或判断.这个结构是近几年高考情态动词的重点和难点.一、在虚拟语气中的用法1. should have done 表示“过去本应该做某事却未做.”其否定结构 sh...
首播时间:20230721 语言/字幕:汉语 更新时间:20230721 简介:怎么读大多数人都会读错的could not have?学完你就厉害了,教育视频免费在线观看,视频简介:怎么读大多数人都会读错的could not have?学完你就厉害了 UP主简介 英语e姐吖 粉丝数:5 作品数:217
could not have done的用法 "Could not have done"是一个过去完成时的结构,表示在过去某个时间点已经做了某件事,而且此事已经结束,现在无法改变。可以使用这个结构来表达对过去事情的肯定或否定的猜测。 例如:。 - I couldn't have done it without your help.(如果没有你的帮助,我不可能完成它。)。 - He...
could not have done是情态动词的虚拟用法,本来不能做某事,但实际上做了. could have done是情态动词的推测用法,是可能已经做了. could not do 是情态动词的基本用法,不能做. could do是情态动词的基本用法,能够做. 分析总结。 couldnothavedone是情态动词的虚拟用法本来不能做某事但实际上做了结果...
您好，The art exhibition was not as good as I had expected. I wish I ___ to it. 答案的确是 hadn't gone 而不是 could not have gone. 因为句子使用了“表过去”的虚拟语气，也就是“虚拟一个和过去事实相反的情景”，这个情景就是“我实际上去过了，但我希望我没去过”，所以需要...
解析 must not have been,肯定不在could not have been,本来不在,(实际在了) 结果一 题目 must not have been;could not have 答案 must not have been,肯定不在could not have been,本来不在,(实际在了)相关推荐 1must not have been;could not have ...
Could not have done 有两种意思：意指不可能发生的事情，用于指对过去发生的事情的判断，例如：She could not have done that, cause she was not in there last night.（她不可能做的，因为昨晚她根本不在那）He could not have seen it, because he was blind.（他不可能看到的，因为他是盲人）对本不...
He could not have known the plan because he didn't attent the meeting yesterday. 表示对过去的虚拟:在表示虚拟语气的时候意思相似,是可以替换的 might not have done:过去就可能不会…… could not have done:过去就可能不会…… 例如:If we left home 15 minutes earlier, we might / could not have...