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to have done和to have been done,had been

be to have done的用法 2023-10-16 14:42 370 墨鱼
be to have done的用法

to have done和to have been done,had been

to have been done用法tohavebeendone是英语中的一种时态形式,用来表示过去已经完成的动作或状态。它由have/has/had been done构成,表示主语在过去的某个时间已经完成了某个1、一般式to be done These are the books to be given out to the students. 这些是要发给学生的书。2、完成式to have been done The novel is said to have

≥﹏≤ 是的,have been就是be从过去到现在即was were 到am is are,是主动的,若加了done则成为完成此答案已被选择为最佳答案,但并不代表问吧支持或赞同其观点

(=`′=) ②被动式:to be done(表示被动,并且一般表示将来) ③进行式:to be doing (表示主动和进行) ④完成时:to have done(表示主动和完成) ⑤完成被动式:to have been1,have done 已经完成了这个事情2,to have been done,则是被动态,事情已经被完成了3,having done 事情正在进行中4,having been done 也是被动态,正在进行的

现在完成时态:have(has) been done。过去完成时态:had been done。过去完成时态:had been done。扩展资料1、一般现在时态:be(am is are) done 例句:I'm taken to school byhave done和have been done的区别为:一、指代不同1、have done:表示做了不必做的事。2、have been done:已经完

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