i don't know what you mean和i don't know what do you mean 有区别么?

i don't know what you mean和i don't know what do you mean 有区别么?
i don't know what you mean和i don't know what do you mean 有区别么?

i don't know what you mean和i don't know what do you mean 有区别么?
只有第一句对,第二句不对
因为这句话是宾语从句
从句要用陈述句语序
所以根本不存在什么区别
而是一个对,一个不对
有什么不懂的再问吧

后句不对

肯定有啊，后面那个句子是错的，宾语从句从句要用陈述语气