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?

分类: 作业答案 • 2022-02-24 14:06:50

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?

答

过去将来完成时态

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.