i don't know why did she live there.这个句子正确吗?请分析

错，why后面不应该接疑问句，所以那个did应该去掉，把live改成lives.

不正确，I don't know 后应接一个宾语从句，可是why did she live there 明显是个疑问句，所以正确的句子应是 I don't know why she live there .

错,宾语从句中用陈述语气,不用倒装
i don't know why she lived there

she doesn