求一个句子的语法结构分析

问题描述:

求一个句子的语法结构分析
He will do everything he could to be worthy of the faith and trust of the people.
请问里面的he could ,还有 to be worthy of ...分别是什么语法结构?

he could 修饰everything,是everything的定语从句.
to be worthy of the faith and trust of the people.不定式作状语