Question

英语中，非谓语在进行时，且表示主动的时候，应该用ed还是ing形式呢？

英语中，非谓语在进行时，且表示主动的时候，应该用ed还是ing形式呢？比如，(being or been) happy,
tom have finished my homework.
或者改成
homework is being finished by tom。

Answer 1

非谓语，进行且表示主动应该是-ing.
举个例子：Teacher walks in the classroom, holding on a book.
老师拿着一本书走进教室。holding on既是进行，又是主动。
你说的句子，Being happy,Tom has finished homework.是可以的。但是finish不可以是进行时态的任何一种时态。因为这是非延续性动词。动作在发生的一瞬间就结束了。不可能完成这个动作持续很久。所以being finished是错的。总的来说这是进行时态的一种。

追问

例句我随便照个句子改的。。。题目我也问错了。
就是说一个句子，既有主动形式，又是完成时，是应该用ing还是ed结尾呢？

追答

用having done

现在完成用Having done

应该都用 having done的

被动的话是 having been done

例1. _________ many times, but he still couldn’t understand it.

A. Having been told B. Having told

C. He had been told D. Though he had been told

例2．_________ many times, he still couldn’t understand it.

A. Having been told B. Having told

C. He had been told D. Though he had told

解析：例1中有连词but连接，表明前后都是句子，所以答案为C。

例2中后面是一个句子，而且没有连词，所以前面不是句子，应该用非谓语动词，根据句意此处为被动，所以答案为A

追问

谢谢你

Answer 2

这个例句是错的，finish不是延续性动词，不能用这种进行时的被动

追答

能再举个例子吗？不是很明白你的问题