would/could/must have done在虚拟语气中怎么用?
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:英语作业 时间:2024/07/22 16:21:49
would/could/must have done在虚拟语气中怎么用?
![would/could/must have done在虚拟语气中怎么用?](/uploads/image/z/5608520-8-0.jpg?t=would%2Fcould%2Fmust+have+done%E5%9C%A8%E8%99%9A%E6%8B%9F%E8%AF%AD%E6%B0%94%E4%B8%AD%E6%80%8E%E4%B9%88%E7%94%A8%3F)
would have done本来想要做某事(却没做)could have done 本来能够做某事(却没做)must have done 过去一定做了某事(对过去发生事情肯定的推测),这三个情态动词加have done,都是对过去发生事情的虚拟,从时态的角度讲是一种过去时.
would/could/must have done在虚拟语气中怎么用?
虚拟语气中,什么时候用would have done,would do
虚拟语气中would could should might have done与had done都是表示过去,在用法上有
情态动词中 should might could would + have done 与 它们在if 虚拟语气中用法 有
shall have done和would have done在虚拟语气句中是什么意思?
虚拟语气中的would have done 与could have done结构 有什么 区别?什么时候用would什么
虚拟语气中对过去的虚拟主句否定是用would have not done or would not have done?
关于could have done 的虚拟语气
虚拟语气would have done 的用法
would have done 和would had done 分别用在什么句子中?请举例句说明(虚拟语气的用法)
虚拟语气 if You could have done other career What would it have
虚拟语气 should have done 与 could have done