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could have done

  • could have done用法_图文

    The worst of it is that I could have prevented the accident could have done 表示未曾实现的能力:即表示过去本来有能力 可以做某事的,但实际上没有那样去做......

  • would should could have done用法和区别

    would/could/might/should have done 等 用法和区别一、在虚拟语气中的用法(情态动词都是过去时态!) 1. should have done:原本应该做某事,(否)s ......

  • couldhavedone用法详解

    could have done 用法详解 1. 表示主观猜测:即对已经发生动作或...

  • could have done 用法

    could have done 用法 1. 表示主观猜测: 即对已经发生动作或已...

  • could、should、would+have_done

    相当于 may not have done,意为: “过去可能没有做某事。 ” should have done:本应该做而没做某事,强调“本来应该” ; could have done:本可以做却没做......

  • could have done

    should/would/could/might/must+have+done 一、 “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句。 1. It must have ......

  • 情态动词+have_done的用法_图文

    A. should have been doing B. must have been doing C. could have done D. would have done ? 11. He is not poor. You ___ have lent him the ......

  • wouldshouldcouldhavedone用法和区别

    need 的过去式是 needed. 4. could have done 原本能够做某事注意: couldn't have done 无虚拟语气的用法, 只表推测,相 当于 can't have done:过去不可能......

  • should,could 情态动词+have done 引导的虚拟语气_图文

    1. could / need / should have done 引导的虚拟语气及其否 定形式 ? 2.key setences of Unit 1 挪威的森林 I shouldn't have asked you 或许我 And sho......

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