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hAD BEEn与hAs BEEn用法有何区别

have been 和 has been 只是根据前面主语的人称而定。都是一般现在完成时 简单来说如果前面是I,you,we以及复数形式的主语则是have been 第3人称单数如he,she,it,则是用has been 有been的话表示被动语态 had been则是过去的过去,是过去完成时,...

have been 和 has been 只是根据前面主语的人称而定。都是一般现在完成时 简单来说如果前面是I,you,we以及复数形式的主语则是have been 第3人称单数如he,she,it,则是用has been 有been的话表示被动语态 had been则是过去的过去,是过去完成时,...

区别: 一、 has been是现在完成时. had been是过去完成时. (1)he has been worked in hospital 表示他过去在医院工作,现在有可能还在医院工作 (2)单数或第三人称时用has they have been worked in hospital (3)人称复指,第一二人称时用ha...

一个是现在完成时,一个是过去完成时 he has been worked in hospital 表示他过去在医院工作,现在有可能还在医院工作 单数或第三人称时用has they have been worked in hospital 人称复指,第一二人称时用have he had been worked in hospital 他...

has been ,have been 首先来看这两个词组的时态都是现在完成时,第一个词组适用于第三人称单数之后,第二个用于非第三人称之后,后面加上to的意思是曾经去过某地,现在已经返回之意。had been是前面两个词组的过去完成时形式,常常用于宾语从句...

have been 和 has been 只是根据前面主语的人称而定.都是一般现在完成时 简单来说如果前面是I,you,we以及复数形式的主语则是have been 第3人称单数如he,she,it,则是用has been 有been的话表示被动语态 had been则是过去的过去,是过去完成时,和上...

区别: 一、 has been是现在完成时. had been是过去完成时. (1)he has been worked in hospital 表示他过去在医院工作,现在有可能还在医院工作 (2)单数或第三人称时用has they have been worked in hospital (3)人称复指,第一二人称时用ha...

had died 强调动作,不能和一段时间的状语连用 had been dead表示状态,与一段时间的状语for a long time,for ten years连用 亲:祝你学习进步,每天都开心——V_V! 望采纳,thx!

Have/Has been done 与Have/Has done 的区别只在语态使用的区别,如下: 1、have been done是现在完成时的被动语态,表达的状态是一种被动的,一般主语用物。 如:His homework has been finished before he went home. 他的作业在回家之前就被完...

have been 和 has been 只是根据前面主语的人称而定。都是一般现在完成时 简单来说如果前面是I,you,we以及复数形式的主语则是have been 第3人称单数如he,she,it,则是用has been 有been的话表示被动语态 had been则是过去的过去,是过去完成时,...

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