I'm studying some flashcards on Anki at the moment and on one of the downloadable decks there is a cards that reads:
'Where shall I pass to fetch you?'
'Dónde te paso a buscar'
I trust this translation as the deck is supposed to have been verified. But could I also say:
'Dónde paso a buscarte?' This is more natural for me as an English speaker.
Also, is 'Dónde paso para buscarte?' correct?
The subject of the sentences can change of position.
"TE paso a buscar" or "Paso a buscarTE" your fhrase "donde paso para buscarte" is incorrect. It is Donde paso A buscarte? Or Donde te paso a buscar?
Yes, if a phrase has both a conjugated verb and an infinitive or present participle, you can put the clitic pronoun before the conjugated verb or after the participle, as you prefer. "Pasar a buscar" is a set phrase.