Birdman的What Happen To That Boy谁能把这首歌传给我?

Birdman的What Happen To That Boy谁能把这首歌传给我? What happen what happen what will happen?的主谓宾在那里 what if 的完全形式是 what would happen 还是what will happen 请问：happen的用法.eg:what happened,what's happen的区别 What happen还是What is happen? what happened 和what did happen的区别 what happen与what happens的区别是什么? what is up与what is happen的区别 what will happen? What happen to What's happen? What will happen? what will happen then what will happen next? What happen is incorrect? what is happen