would do的用法详解,would do与should do的用法区别?
问题描述：
would do的用法详解,would do与should do的用法区别?
答
have用于第一第二人称（i ,you),has用语第三人称he/shewas/were是is/are的过去时.放主语后面 做谓语should/would 后跟动词原形 should是应该是意思.语法should have done(done意思是动词过去分词）意思是本应该做什...