Questions & Answers about Przed wyjazdem muszę zatankować samochód.
Because przed requires the instrumental case when it means before in a time sense.
- base form: wyjazd = departure / leaving / trip
- instrumental singular: wyjazdem
So:
- przed wyjazdem = before the departure / before leaving
This is a very common pattern in Polish:
- przed pracą = before work
- przed snem = before sleep
- przed podróżą = before the trip
Wyjazd most literally means departure, leaving, or sometimes a trip away.
In this sentence, przed wyjazdem most naturally means:
- before leaving
- before the trip
- before departure
Which English translation fits best depends on context. If someone is about to drive somewhere, it may feel like before the trip. If the focus is simply on the act of leaving, then before leaving is closer.