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hAvE BEing DonE 和hAvE BEEn Doing 的区别是什么

being done:被动语态,意思是:正在被做(被完成) have been doing:现在完成进行时,表示已开始,正在进行,还没结束,意思是:一直做这个做到现在 having been done:被动语态,现在完成时,意思是:已经被完成

没有have being done.语法书中较少提及have been being done这种时态,但该时态理论上是现在完成进行时的被动语态,较少用. 只有have been doing现在完成进行时 望采纳

非谓语动词有三种: 分词,不定式,动名词 若是说是四种,就是把分词再分成现在分词和过去分词 done是过去分词的一般式,表示完成 being done是现在分词的被动式,往往表示正在进行的动作 to be done是不定式的被动式,往往表示将来 例句: The buildi...

have done 表示以前做过对现在仍有影响,表示延续。 have being doing表示过去正在做某事,强调动作

【Being done的用法】一、与be动词一起构成现在进行时的被动语态(am/ is/ are being done)和过去进行时的被动语态(was/ were being done)。The new houses are being painted.这些新房子还在刷漆。 二、作后置定语,修饰某一名词,表示某一...

1. was being done 为过去进行时的被动语态:正在被...... The bridge was being built at this time last year. 去年的这个时侯这座桥正在被修建。 2. has been done 为现在完成时的被动语态:已经被...... The book has been finished already...

是不是写错了。有have been doing, 现在完成进行时 have/has)+been+动词的现在分词+其他成分。表示动作从某一时间开始,一直持续到现在,或者刚刚终止,或者可能仍然要继续下去。(与since,for连用时,常常表示动作会进行下去) 也可以表示某...

(be being done进行时被动语态) 例The students are cleaning the classroom now. →The classroom is being cleaned now. (have been done现在完成时) 例The room has been cleaned by me. (be being doing)这个貌似没有

解释如下 is being done和has been done的区别 is being done 是被动语态的现在进行时态,是说某件事情在现在的一个时间点正在被做 has been done 是现在完成时的第三人称单数做主语的形式 例如: The research is being done when I go into the...

being done是现在分词的被动形式 表示正在进行的被动。 done是过去分词 表示被动和完成。 having been done是现在分词的完成形式 的被动形式 。 表示 动作发生在前的被动。 being done:(动作)正在实施。 done:(动作)已经被实施。 have(has) been...

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