英语过去式had和have been

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：2024/11/12 07:55:16

英语过去式had和have been
在过去式什么时候用had,had been done和have have been done,还有就是有种had have ,是不是过去式里面的“不得不做”!

had been是过去完成时结构：had+动词过去分词：表示两个事件中一个发生在前,或者说是表示较早的过去.
After they had entered the house,they went into the dining room.
他们进到屋里后,走进了饭厅.
have been是现在完成时结构：have/has+动词过去分词：单数第三人称用has,其余用have.表示在过去不确定的时间里发生的并与现在有着某种联系的动作；或者表示开始于过去并持续到现在的动作.
I've just had a cup.我刚喝了一杯.此处had为动词have（喝）的过去分词

have been 和had been 什么区别英语,has been和 had been have been 的过去式? have had . 和have done . had done . 和 have been doing . had b have been to和had been to的区别 had been和have been有什么区别?请举例问had been to 和have been to区别 had been 和 has/have been的区别是什么? 关于Have和Had 还有Have been和Had been的区别 have been 与had been 英语时态区分have done .have been doing.had done.had been doing.有什么 have/had + been/be?