Question

英语语法：have been 的用法 have you been to ShangHai? have you been in ShangHai? 哪个问法合适？

若都可成立，分别是表达何种意思？
have been ShangHai 成立否？
I have been ShangHai 成立否？

Answer 1

强调重点不一样，前面指去过上海，后面指在上海呆过，在时间上的长短不一致，have been shanghai肯定不成立，难不成意为“我当过上海，我是上海”太扯了吧

Answer 2

have been ShangHai 才对.

Answer 3

Have you been to Shanghai?成立