upon放在句首,后面的动词使用被动语态时,是用being done 还是直接写done

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/08 17:33:59

这又是一个关于语法和习惯用法的争议的问题,
尽管从语法来看
upon sth.being done
没有错,一般说法是
upon doing sth.
例：
Upon completing the assignment you will get the certificate
You will get the certificate upon completion of the assignment
再问：可是如果要使Upon completing the assignment变为被动语态，那be动词要不要省略，我只记得after和before的是不能省的，但不清楚upon
再答：按时态要说 upon the assignment being completed 但一般人说 upon completing the assignment 语言不仅是语法，也是习惯，俗语说， language is usage (即 language is what common usage makes it)
再问：比如“这本书一旦完成就要出版”，用upon，主语为书，怎么造
再答： The book will be published upon its completion （句中） Upon its completion the book will be published （句首）
再问：你还是没明白我的意思呢~~~~~ upon its completion 如果改种说法，是upon being completed 还是upon completed
再答：我明白你的意思，我是说不可说 upon being completed 或 upon completed 人家笑你的。

upon放在句首,后面的动词使用被动语态时,是用being done 还是直接写done 英语语法until后面被动是跟being done还是done 动词的被动语态做主语是用Having done ,还是Ved ? 过去将来进行时的被动语态是would being done吗非谓语中表示现在进行时的被动语态用being done? 表示被动的非谓语动词是用done,还是用been done have done还是be done是被动语态, being done 与am/is/are/being done 的这个被动语态有什么区别么 am+ being +done 造个被动语态的句子.谢谢. 将来时被动语态可以用be being done吗 being done 和was /were done的用法和区别老师说being done 是放在介词之后的, 现在时的被动语态　be done