帮忙分析下句子结构,

题目

帮忙分析下句子结构,
“It can be most effective with products that can be differentiated from similar products based on consumer-accepted quality differences.”
主句是It can be most effective with products
那么effective with 什么固定词组吗?
还是说It can be most effective是主句,with products 那一堆都是补语呢?

答案

be effective with 对...起效
主句是It can be most effective with products
it 主语 can be most effective with 谓语 products 宾语