had been,has been,has,had 后面加过去分词都是怎么用的?

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/15 14:15:37

had been,has been,has,had 后面加过去分词都是怎么用的?
【以及和was,is有什么区别?】

首先is和was
在现在时态用is
过去事态用was
had been /(pp)
是过去完成事态的用法.
一般用在时间方面,如：
It had been for 3 years since he left
I had finished it yesterday.
has been/(pp) p.s.pp 是过去分词
是一般完成事态
she has finished it now
she had finished it yesterday

had been,has been,has,had 后面加过去分词都是怎么用的? have been doing sth had 加过去分词 have has 加过去分词分别是什么时态?求什么区别?最现在完成时have/has为什么后面有时加动词的过去分词,有时加been 什么时候用have been,什么时间have/has后面直接加过去分词? have/has/had加been是什么时态 has/had been 跟has/had gone have been / has been / had been 的区别 had/have/has gone/been 的区别英语,has been和 had been has gone,had gone,has been,had been 该怎么使用（搞乱了,特别是had和has） has been 和 had been 的用法和差别 has been done,had been done 的区别是什么?