thisbook{waswrittenby还是用writtenby}sb.要不要加BE动词

thisbook{waswrittenby还是用writtenby}sb.要不要加BE动词

如果是一个独立的句子要加be,如果在复合句里面的话，不加也可以！
举个例子，This book was written by Tom.
The books written by Tom are very good!

看情况了。 如果你要说的是一个完整的句子，那么必须要用be动词，因为没有be动词，句子就不完整了。如果你要说的不是完整的句子，比如说是一个定语结构，那么就不用be动词了。举例子吧： This book was written by sb. The book written by Join is very good.其中句子中的written by Join 是book的定语，这个时候不要用be动词了，否则句子就多了个谓语。

你好！ 两种情况都可能出现，只是用法不同。 This book was written by Lincon.这个时候是一个包含被动语态的完整句子，强调了动作的发出者。 This book written by Lincon is really terrific. 此时，written这个过去分词修饰前面的书，后面好必须有谓语，才能构成一个完整的句子。 打字不易，采纳哦！

通常来说直接写 Written by sb

1 this book written by Mike is a good book 其中 this book written by sb.是主语 2 this book was/is written by Mike. 其中this book 是主语

要看语境的