If I had known it earlier,I would have made preparations.

问题描述:

If I had known it earlier,I would have made preparations.
问:我知道是虚拟语气,也知道翻译,我就问:主句I would have made preparations是什么时态,为什么要这样,有什么规律?
1个回答 分类:英语 2014-11-05

问题解答:

我来补答
主句是现在完成时态,从句是过去完成时态,一般主句要晚一个时态.这是习惯使然,也就是语法约定.
 
 
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