题目内容：

there must be something visiting the homes in our neighborhood的语法内容 visiting

优质解答

there be 结构后面如果有动词,只能用非谓语动词形式：Ving或者Ved.取决于与前一名词的主被动关系.比如这句中something 和visit是主动关系,用visiting.
如果是被动就用ed.如： there must be something done by him.