"Do you believe my aunt?"
Translation:Tu o crezi pe mătușa mea?
It is the preposition which introduces the object complement "mătușa".
Pe cine crezi tu? Pe mătușa mea. Who do you believe? My aunt.
Does that mean that pe shouuld always come immediately before the object? The tips and notes show the use of pe mine, pe tine, etc for the accusative pronoun , so would it be possible in some sentences to have pe (object) and then further on in the sentence pe (accusative pronoun)?