概念
条件状语从句使用虚拟语气时,要注意假设的时间,即现在、过去、将来。虚拟语气在条件状语从句中有三种变化,主句也有三种变化。
主句谓语变化规则:
- 过去时:should/would/might/could do
- 现在时:should/would/might/could have done
- 将来时:should/would/might/could do
从句谓语变化规则:
- 过去时:if had done
- 现在时:if did
- 将来时:if were to do / should do / did
对过去假设
If I had got there earlier, I should have met here.
If he had taken my advice, he would not have made such a mistake.
对现在假设
If I were you, I would take an umbrella.
If I knew his telephone number, I would tell you.
对将来假设
If he should come here tomorrow, I would talk to him.
If there were a heavy snow next Sunday, we would go skating.
标签:do,would,虚拟语气,从句,should,状语 来源: https://www.cnblogs.com/shiramashiro/p/16147311.html
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