My brother has been to Shanghai.请问这里has been to在句子中做什么成分?
问题描述：
My brother has been to Shanghai.请问这里has been to在句子中做什么成分?
请将has,been,to分开具体分析，若不能分开，请说明理由
答
My brother has been to Shanghai.
我哥哥曾经到过上海
My brother 主语
has been to谓语到过什么地方 已经回来了
Shanghai.宾语