问题描述： “如果以前做了某事” 虚拟语态是If I would have done... 1个回答 分类：英语 2014-10-30 问题解答： 我来补答 表示于过去事实相反的假设.句型：条件从句(if had+done) ,主句(would have done) 过去完成时 should(would) have+ 过去分词例子:If she had worked harder,she would have succeeded.hope this can help! 展开全文阅读
