Quote Originally Posted by JarekSteliga View Post
I think confusion is further amplified by the use of "be" in "I've been".
One might holler at the lack of consequence. Why is "be" used in Present Perfect while "go" is used in Simple Past to describe what essaentially is one and same thing i.e. spending a period of time at the bank?
They are not essentially the same thing, but this is not the place to go into that. We have had long and occasionally unpleasant tedious discussions about this. I am not going to post the links - those interested can try to find the threads.
I suppose one should not try to look for the underlying logic behind different expressions, but rather accept and learn them as they naturally occure (as long as the main purpose is just to learn a foreign language)
That is the common-sense approach.