Question

had written,was written,is written,have written有什么差别?

Answer 1

1.had written是过去完成时态.发生在过去的过去.比如说：“我在他写这类文章之前就已经写过了”.他的文章已经写好了,而我的比他更早写好.就应该是“I had written this kind of essay before he wrote it."

2.was written和is written是被动语态.时态不同.“这首歌是他写的”

“this song is written by him."

“这首歌是他十年前写的”：“this song was

written by him 10 years ago.”

3.have written是现在完成时.表示到现在为止

写完.比如.“我现在已经写了3本小说”就是“I have written 3 novels by now."