I am there,I was there,I have been there.Difference.

I am there,I was there,I have been there.Difference. I have been there i have always been there i have never been there I have never been there. i have been there twice I`ve never been there,have you ever been there? Because I never have been there before. I have been there.(改为一般疑问句 there I am 是什么意思? I have been there by train.I have ______get. I was there for 4 days.和 I have been there for 4days.有什么区别? I have to i____ that i've been there