I'm afraid that there was something wrong happend.这句话语法对吗?

错的!
there be 句型 只有be是谓语动词,这里happen用的不对.
改成there was something going on
或者 there was someting that happened
【俊狼猎英】 欢迎追问there was someting that happened要是把that省略不对吗？这儿的that不能省略吗？求解释that这里是定语从句主语，无法省略。