he Umbrella Corporation had become the largest commercial entity in the United States该句的结构
问题描述：
he Umbrella Corporation had become the largest commercial entity in the United States该句的结构
主语谓语宾语状语定语分别是什么?
答
he Umbrella Corporation是主语 had become是系动词
the largest commercial entity是表语 in the United States是定语
系动词加表语=谓语The Umbrella corporation had became 中的had 是什么成分啊？had become是系动词 become的过去完成时 had是助动词 become是过去分词 合在一起 是过去完成时 的谓语动词形式