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hAD BEEn与hAs BEEn用法有何区别

用法区别如下: 1、had been过去完成时; 2、has been现在完成时。 3、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 ...

1、had been过去完成时;has been现在完成时。 2、have been只是根据前面主语的人称而定,都是一般现在完成时。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。而had been不管前面是什么都只有这...

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...

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;是表示现在完成时的词 1、have been:可以认为是现在完成进行时的标志,结构have been doing。 一般来说现在完成进行时有两种用法,一表示过去的动作延续到现在,并有可能延续下去: He has been working out all day;他整天在锻炼(暗...

is 用于一般现在时,主语是第三人称单数时使用。It is ten years since we came here . has been 用于现在完成时中。It has been ten years since we came here . had been 用于过去完成时。It had been ten years since we came here . was用于...

have 主语是复数形式后用。 has 主语是第三人称单数后用。 had have的过去式。 如果说一个过去式就变成he had 确实是这样 而不是has

1、首先要区分has been done与 had been done的区别:have/has been done 是现在完成时的被动语态。表示某事被做,。 如:The problems have been solved.这些问题已经被解决了。 had been done 则是过去的过去,是过去完成的被动态时...

have been 是现在完成时,had been 是过去完成时。过去完成时的动作到过去的某一个时间为止,而现在完成时则是动作到现在还在继续的。 had been 一、释义: 已经(过去完成时) 二、双语例句: 1、She telexed us that the agreement had been c...

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!

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