比较级than后面也能跟从句?那么这个句子算什么从句?You could have done it better than that if you had tried.那么这个算什么从句?修饰的是it?定语从句?

本句是虚拟条件句,You could have done it better than that if you had tried.主句是you could have done it better than that,条件从句是 if you had tried, 整个句子的意思是“如果你努力的话, 你就会做得比这更...