题目内容：

He is always worrying about his son. worrying可以换成worried吗?为什么?

优质解答

可以,worrying 是现在进行式动词,换成worried后变成了形容词.
He is always worrying about his son.他总是在担心（动词）他的儿子.
He is always worried about his son.他总是为了儿子忧心忡忡（形容词）.