Questions & Answers about Quan arribis a l'andana, mira si el tren té retard i truca'm.
Because after quan when you are talking about a future action, Catalan normally uses the present subjunctive.
- Quan arribes... = when you arrive / when you are arriving (more like a habitual or general situation, depending on context)
- Quan arribis... = when you arrive in the future
So in this sentence, Quan arribis a l'andana means When you get to the platform.
This is something English speakers often notice because English does not use a special subjunctive form here.
Arribis is the 2nd person singular present subjunctive of arribar (to arrive).
The present subjunctive of arribar is:
- jo arribi
- tu arribis
- ell/ella arribi
- nosaltres arribem
- vosaltres arribeu
- ells/elles arribin
Here it matches an understood tu, because the rest of the sentence is also speaking to one person informally: mira and truca'm.