“what's the happening ”和“what the happened”的区别是什么啊?

“what's the happening ”和“what the happened”的区别是什么啊?
“what's the happening ”和“what the happened”的区别是什么啊?

“what's the happening ”和“what the happened”的区别是什么啊?
what's the happening
这个意外发生的事 是什么?
what's the happened?没有见过这种用法
what's happened?怎么了?what's=what has