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hAD BEEn DonE

had been done 表示过去的过去,是过去完成的被动态时。(当你想说发生在过去的两件事时,就要分清谁先谁后。先发生的用过去完成时,后发生的要用过去时)。 如:The rooms had been cleaned when I came. 我来的时候,房间已经被打扫了。 have/...

had been done 时态:过去完成时 语态:被动语态

have\has done 叫现在完成时。表示动作发生在过去,对现在有一定的影响。通常与时间段连用。 如:I have finished my homework. / It has rained for three days. had done 是过去完成时。表示动作发生在过去的过去。通常句中有过去时间状语作参...

从你的问题可以看出你真的有点混乱哦。 have done 是现在完成时 have been done 是它的被动态形式 比如说 i have turned off the lights. 说明我已经把灯关了,灯现在是灭的。 用被动态来做就是the lights have been turned off. had done 是过...

have done是现在完成时的主动语态,表示从过去某个时间点一直持续到现在一直在做某一件事; have been done 是现在完成时的被动语态,表示从过去某个时间点到现在一直被做某事。

had been done过去某个时间之前已经被做、被完成 had been doing过去某个时间之前已经在做或者继续在做 had be done是错的。时态和语态多不对。 had being done也是错误的。时态和语态都不对。 had纯粹的过去动作。

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...

这是个比较受争议的问题,网上的说法各有千秋(主要是因为一些人不懂装懂)。实际上这个问题并不复杂: 1、having been done在高中很少提到,一些又提到的老师直接说having been done 就是 done ,这种说法是成立的,因为having been done表示一...

was done 是过去式的被动语态。主要陈述事实。 The housework was done by Jim. had been done 是过去完成时态的被动语态,主要表达某个过去事实之前发生的事情。Jim's mother was going to do the housework,while it had been done by Jim.

两个都正确。 ~have been done 是被动语态的完成时态,主语是行为对象,表示 “已经被完成”。 ~have been doing 是完成进行时,主语是行为者,表示 “一直都在做着”。

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