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hAD DonE Doing

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。(当你...

have been doing 是现在完成进行时,表过去发生的动作一直在进行到现在。 We have reading an interesting book since last week. have done 是现在完成时,表在过去发生的动作对现有影响。 So far I have been to Beijing twice. had done 是过...

先按照被动语态区分,havebeendone是被动,其它都是主动(bedone形式都是被动)havedone现在完成时,havebeendoing现在完成进行时(bedoing是进行时,而havedone是完成,be的过去分词是been,于是就是现在完成进行时)willhavedone由于有havedone...

have been doing 是现在完成进行时,表过去发生的动作一直在进行到现在. We have reading an interesting book since last week. have done 是现在完成时,表在过去发生的动作对现有影响. So far I have been to Beijing twice. had done 是过去完...

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。

你好 为你的解析如下: have had 就是你已经有了什么 比如 I have had this dictionary since I was little. have done 就是你做过什么 比如 I have made a big buzzer shot. 我曾经打球时绝杀过。 had done 就是针对于过去的过去,理解起来就是...

恩 我先来说一下例句 一。His trousers was been worn out. (这里的 过去分词是做表语,表明一种状态) was been done,而这里的逻辑主语又是他的裤子,所以用被动,是被他穿破的 二。 The bicycle is been riding by my brother now. (这里的 ...

这个是非谓语动词 to do 和doing 或done 是非谓语动词里面最基本的三种类型,不过她们是有时态和语态的变化 to do 表示要去做这件事情,表示事情还没做呢, 比如,to complete this work,I have to work for three hours. 为了完成这个工作,我...

现在完成时have done 有无明确时间状语 I have visited the temple. I visited the temple 3 days ago. 从过去发生延续到现在 She has lived here for 2 years . 一直延续到现在 She lived here for 2 months 2 years ago. 过去曾延续过 特殊用...

had just done表示刚做完.......紧接着就发生了........were/was doing.....when当......的时候在做.........be about to do when当........的时候准备要做............

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