题目内容：

why aren't you 和Why don't you 的区别和用法

优质解答

Why aren't you ( a good cook)?be后跟表语 你为什么不成为一名好厨师呢?
Why don't you (say that) don't 后跟行为动词 你为什么要说那件事呢?

追问：

why arent you helping your mother和why dont you help your mother呢？