虚拟语气中对过去情况表示虚拟时would have done 和 had done的区别 | 您所在的位置:网站首页 › would be would have been区别 › 虚拟语气中对过去情况表示虚拟时would have done 和 had done的区别 |
在 if 引导的条件状语从句中表示对过去的虚拟不可以用 would have done;但是在 wish 的用法中,表示对过去的虚拟 would have done 和 had done 却都能用,这是为什么?且两者有什么区别吗? 解答如下: 你的提问可以归纳为以下2种情况 (1)if引导条件虚拟句 A:如果是对过去虚拟或者假设,从句用过去完成时态,主句用would have done If I were a bird, I would fly to America. B:如果是对现在虚拟或者假设,从句用一般过去时态(be只能用 were,)主句用would+动词原形 If he had come here, he would have helped me with it. C:如果是对将来拟或者假设,从句用(should+动词原形;were to +动词原形),主句用would +动词原形 If he were to come tomorrow, he would help me with it. (2)wish动词的宾语从句虚拟句 用于wish后面的从句,表示与事实相反的情况,或表示将来不太可能实现的愿望。其宾语从句的动词形式为: (1)表示与现在事实相反 主句谓语动词为一般现在,从句谓语动词为一般过去式(be的过去式为 were) (2)表示与过去事实相反 主句谓语动词为一般过去,从句谓语动词为过去完成时式(had + 过去分词) (3)表示与将来事实相反 主句谓语动词为一般现在,从句谓语动词为would +动词原形 I wish I were as tall as you. 我希望和你一样高。 He wished he hadn't said that. 他希望他没讲那样的话。 I wish it would rain tomorrow. 我希望明天下雨就好了。 在 wish 的用法中,表示对过去的虚拟时would have done是否能够使用?如果可以,和had done有什么区别? wish 宾语从句中不可以使用would have done 表示对过去的虚拟,只可以使用had done sth 结构表达对过去事实虚拟和假设。 |
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