www.xltd.net > hAvE BEEn Doing 和hAvE DonE 还有hAD DonE三者的...

hAvE BEEn Doing 和hAvE DonE 还有hAD DonE三者的...

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...

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。 have done 是现在完成时,表在过去发生的动作对现有影响。 主要区别是have been doing 表示动作从过去一直持续到现在,并会继续下去。have done表示过去动作结束了,对现...

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...

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 done 是现在完成时,表示动作在现在时间之前的完成。 had done 是过去完成时,表示动作在过去的一个时间点之前就已经完成了

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 sth.是现在完成进行时态,表示一直在发生的动作、一直存在的状态 如:1. I have been waiting for your phone call these days. 2. He has been watching TV since I came back.have been done 是现在完成时态的被动语态形式,...

had been done 过去完成时 过去某个时间之前就已经完成 例如,All of my execises have been done when you asked me yesterday. 昨天你问我的时候,我的作业已经做完了。 have been done现在完成时 到现在为止已经完成 例如,All of my execise...

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/...

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