why not和why don't的区别是什么?
一、用法不同
1、why not:why not直接+do something。
2、why don't:why don’t+人称+do something。
二、句子结构不同
1、why not:why not可以独立成句。
2、why don't:why don't不可以独立成句。
三、时态不同
1、why not:why not没有时态的变化。
2、why don't:why don't结构可以有属时态的变化,例如变为过去why didn't。
扩展阅读:would you please do ... whether or not ... why not do sth to do ... by doing something ... why not和why don't的区别 ... let s do ... why not do还是doing ... leave sb ... why is和why does ...