题目内容：

I don't know what do you say.
为什么what后面要加do?
I don't know what you say.不可以吗.

优质解答

你的说法是正确的,应该是I don't know what you say.这句话是由连接词what引导的宾语从句.宾语从句所表达的意思无论是陈述还是疑问,用作宾语从句时必须是陈述句语序,也就是说主谓次序不能颠倒.再举几个例子：I don't...