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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 ...

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,...

has been 是现在完成时,has表示主语在第三人称的时候出现的动词形态; had been 是过去完成时,had是表示过去式的一种形态。 举例一: Ian Lentern has been granted a three-year extension. 伊恩·伦特恩已经被批准延期3年。 举例二: 'It is ...

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...

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...

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...

现在完成时(have done); 过去完成时( had done); 就是一个完成了现在也在进行了 一个完成了,就是过去的过去

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...

在had been中的had和has been中的has都是助动词,分别是用来构成过去完成时和现在完成时的助动词,没有具体意义。

have been 与 has been是主语是复数或单数时使用,都表示现在完成的动作 had been 是过去完成时的时态,表示陈述已经过去发生的事件

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