条件状语从句可否用could2
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发布时间:2023-09-20 16:20
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时间:2024-10-27 16:40
if 的条件从句分为真实条件从句和虚拟条件从句。而真实条件从句适用于主将从现,是假设有可能发生的,而虚拟条件从句是假设不太可能发生的。
IF的虚拟语气有三种:
与现在事实相反:动词过去式(be用were)——would/could/should/might+动原
If i were you, I would/could/should/might do that.
与过去事实相反:had+动词过去分词——would/could/should/might+have+动分
If i had know that yesterday, I would/could/should/might have told you.
与将来事实相反:should/were to+动原——would/could/should/might+动原
If it should rain, the crops would/could/might be saved.