The difference between one to other is that one is an action that happened before and still
happening that is the PPC, and the other is an action that just happened and probably still over
it
Structure PPS: Subj + have+ verb in present perfect+ complement
Structure PPC: Subj+ have been + verb in gerund + complemnt
PPS/PPC: It is a occur narrate in the past but it still having relevance in the present
I have been traveling to San Andres. I have done my homework. I have been studying all night. I have been riding in bicycle. I have taken the bus