Question

我不知道她是谁 用英语怎么说？

是：I don't know who is she .
还是 I don't konw who she is .
为什么？谢谢

Answer 1

I don't know who/whom she is.口语中可用whom,正式的书面语用who.宾语从句中是陈述句语序即:主语+动词+其它.

Answer 2

I don't konw who she is

who后面是个从句（相当于单独句子），要现有主语再加谓语吧？she是主语，is是谓语

Answer 3

I don't know whom she is.
whom是she is 的宾语,用宾格

Answer 4

I don't konw who she is
who 引导的宾语从句要变为陈述句语序

Answer 5

I don't know who she is. 定语从句在否定句和疑问句都要用陈述句语序。