he would have finished his college education,but he had to quit and find a job to support family

题目

he would have finished his college education,but he had to quit and find a job to support family
句中为什么用had不用would have

答案

这句话涉及虚拟语气用法.过去时间段的虚拟语气,句式 ：主句谓语 would/should/could/ have +过去分词 ,从句谓语 had+过去分词.而从句有时候是可以省略的.这句话补充完整应是 If he had money,he would have finished...