Question

我不知道他在哪，也不知道他是谁。用英语怎么说？

这样对不对；
I don't know where he live in and who he is.
不对哦，我写成了他住在哪，我的问题是他在哪嘛。
所以，这样才吗：
I don't know where he is and who he is.
但感觉很累赘哦，有没有别的讲法？如neither nor等用法行吗？

用了后会不会变成双否定？

Answer 1

I don't know where he live in and who he is.
这样不对。live 后面的in 一定要去掉。
应改为：I don't know where he lives and who he is.

Answer 2

I don't know where he is and who he is.
你的这句要改成
I don't know where he lives in and who he is .
lives用单数.

不可以用neither nor..
后面的where he is and who he is.
是前面I dont't know的宾语..

直接说I don't know where he is and who he is.就行了.

Answer 3

I don't know where is he, also don't know who he is

Answer 4

Neither do I know where he lives nor who he is.

Answer 5

可以