If you spend a day listening to French people speaking to one other, you will hear the verb passer over and over. It is an extremely rich verb and probably one of the most important ones to master since it is used in so many everyday life contexts. Passer also has the particularity to take either the auxiliary avoir or être in the passé composé depending on its meaning.
1. Passer du temps = To spend time
This translation is straight forward. Anytime, you wish to say that you’re spending time with someone or something, you can just say passer du temps avec or sur.
Examples:
Je passe du temps avec mon père tous les dimanches. = I spend time with my father every Sunday.
Je passe du temps sur mes devoirs de français. = I spend time on my French homework.
In this context, the auxiliary verb avoir is used with the
passé composé:
Hier, j’ai passé du temps sur mes devoirs de français.