I am frightened. I was frighten. 的区别怎么决定过去式用在哪呢?

I am frightened. I was frighten. 的区别怎么决定过去式用在哪呢? I am frightened. I was frighten. 的区别?怎么决定过去式用在哪呢?或者是这两个那个对,为 I was worried/frightened两个词有什么区别?有没有 I was worried的用法? 用"is","am","are"造过去式.例:I am ill today--I was ill yesterday-- i am married和 i was married的区别 forget to do sth.和forget doing sth.以及frighten 和frightened的区别 When I was a child I was frightened 翻译 was不是is和am的过去式吗?were不是are的过去式吗?为什么可以用if i were a boy?而不用if i i am ______ to hear the ______news.(frighten) I was frightened when I heard the news同义句 为什么是If I were your father ,而不是I was your father?am的过去式不是was吗 When I arrived,the__[frighten]girl was crying.