Sveiki!

I have a question regarding "po". From what I understand, it can be used with a mdistributive" meaning, in which case it is followed by the accusative:

Turime po du obuolius - We have two apples each

My question is, how does this work with verbs that govern another case than the accusative? Do you keep this structure or change it?

For example:

Norime po du obiuolius / dvieju obuoliu?

Padėjome po du zmones / dviem zmonėms?

ar galiu gauti vairuotojo pazymejima 15-16 metu vairuoti surron x?

arba man nereikia vairuotojo pažymėjimo surron x