what about后面动词用ing形式。因为about是介词，介词后面的动词用ing形式。
what about+动名词
原因如下：
1、What about doing sth.这是一个建议的句子.意思为：做…怎么样
2、about是介词
相似短语
what about（对于）...怎么样
What about you 你呢
know what one is about 做事精明,做事周密
what about...怎么样?你认为…如何?
What are you thinking about 你在想什么
What about...?…好不好?…怎样?
what about...?...怎么样?
What did you talk about 你们谈了些什么
what about双语例句
What about going out with me tomorrow?
明天和我一起出去怎么样？
What about my copier? Can you get it going again?
我的复印机怎么样了？你能把它修好吗？
You are all going. What about me?
你们都去，我呢？
What about you? Would you like to come and live in Paris and work for me?
你呢？愿意到巴黎生活并且为我工作吗？
