what's the different between "I was been there" and "I am been there"?
then.are they same?"I have been there"&"I was there"

Question

what's the different between  "I was been there" and "I am been there"?
then.are they same?"I have been there"&"I was there"

Answer

There is no difference! Both are wrong!

You don't say :
"I am been there" and " I was been there" 
You say :
" I have been there " , " I was there"