why not后加动词原形。Why not do sth，你为什么不；

why的意思是“为什么”，可用作疑问副词，也用作关系副词，还用作连接副词，可以引导名词从句。

扩展资料

Why not have the dish of the day?

为什么不吃今天的精选菜？

Why not write to her?

为什么不给她写信呢？

Why not tell her you're quitting and have done with it?

为什么不告诉她你打算辞职，尽快把这件事了结了呢？

I didn't want a part in the play, then I thought ─ stuff it ─ why not?

我本来没想在剧中扮演角色，然后又一想——管它呢——干吗不演？