情态动词后能加过去完成时如 would had done 如果只存在 would have done 是不是had受情

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/17 05:53:48

情态动词后能加过去完成时如 would had done 如果只存在 would have done 是不是had受情态动词变为have

情态动词后,一般只能用动词原形.如：He can achieve a high mark if he takes the teacher's advice.
如果说他过去没有接受老师的建议,且没有取得高分,此时就可以很惋惜地说：If he had take the teacher's advice,he would have achieved a higher mark.
除了would have done,还有could have done 和might have done等形式,并没有would had done 这种说法.
希望能够帮到你,祝你学习愉快!

情态动词后能加过去完成时如 would had done 如果只存在 would have done 是不是had受情 if sb had done ,sb would have done造句 should have done 与would have done有区别吗?有would/should had done had done 是过去完成时,have done是现在完成时,那have been和had been呢?be不是动词呀没有 would had done 这种时态是吗? 虚拟语气中的would/conld/should do/have done 与 did/had done有何区别求虚拟语气的讲解 had sb done sth,sb would have not done 现在完成时过去完成时怎样强调动词是have/had done+动词原型吗 “情态动词 have done ” 情态动词+have done if you had What would you have done if you had been Marly or 虚拟语气中had done与would have done,did与would do 的用法有何区别

情态动词后能加过去完成时 如 would had done 如果只存在 would have done 是不是had受情

情态动词后能加过去完成时如 would had done 如果只存在 would have done 是不是had受情