been后面跟什么介词（been是系动词还是助动词）

1.去过某地：
have been+in/at（等方位介词）+地点/名词
例：I have been to Beijing.
若后面是副词则不加介词,I have been here/there.
2.已经成为：
have been+名词（多为人）
例：I have been a successful business man.
3.与have gone 的区别：
have been,去过,指人去过回来,在本地.
have gone,去了,指人去了其他地方,不在本地.