if引导的虚拟语气怎样解释

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if引导的虚拟语气怎样解释

if引导的虚拟语气怎样解释
if引导的虚拟语气怎样解释

if引导的虚拟语气怎样解释
if 引导的是条件状语从句,还需要主句意思才完整,例如,对现在情况的虚拟语气的句子:
If I were you,what would you do

你是整个知识点不懂呢还是某个部分不懂呢?

虚拟语气在if非真实条件句中:
与现在事实相反,从句谓语用were/did/had,主句谓语should/could/would/might+动词原形;
与过去事实相反,从句谓语had+过去分词,主句谓语should/would /might/could+have done;
与将来事实相反,从句谓语did/were to do/should+动词原形(不能用would),...

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虚拟语气在if非真实条件句中:
与现在事实相反,从句谓语用were/did/had,主句谓语should/could/would/might+动词原形;
与过去事实相反,从句谓语had+过去分词,主句谓语should/would /might/could+have done;
与将来事实相反,从句谓语did/were to do/should+动词原形(不能用would),主句谓语should/would/could/might+动词原形。

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