为什么Why don't you不能写成Why do not you?

为什么Why don't you不能写成Why do not you? why don't you do=why not doing why not 同义词是 why don't you 还是 why don't you do Why don't you+...why not +. why don't you do 为什么是 Why don,t you like koalas 不是 Why do you don,t like koal why don't we =why not 还是why don't you=why not why don't you?可以说缩写成why do not you Do /don`t you think that.would you consider.why/ why not. why don't you,why not,what\how about ,how do you feel about why don't you still come 还是why do you still not come? 1.What do you not like?还是What don't you like?Why do you not