there are a lot of things you know should be doing 这句话的成分是什么?怎么分析啊.谓语动词有are 还有should be 两个谓语 难道有there are something should do 这个句型?

there are a lot of things you know should be doing 这句话的成分是什么?怎么分析啊.
谓语动词有are 还有should be 两个谓语 难道有there are something should do 这个句型?

这是个病句!
should be doing 是定语从句,缺主语（关系代词）