Breakdown of Cuando vuelvas de tus vacaciones, habremos terminado esta temporada de la serie.
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Questions & Answers about Cuando vuelvas de tus vacaciones, habremos terminado esta temporada de la serie.
Why is vuelvas in the subjunctive instead of vuelves?
In Spanish, after time expressions like cuando, en cuanto, después de que, etc., you normally use the present subjunctive when you are talking about a future action that hasn’t happened yet.
- Cuando vuelvas de tus vacaciones… = When you come back from your vacation (in the future)… → not done yet → subjunctive (vuelvas).
- If you say Cuando vuelves de tus vacaciones…, it sounds like you’re talking about something habitual or already scheduled, not a single unknown future event.
Compare:
- Cuando llegas tarde, me molesto.
When you arrive late, I get annoyed. (habit → indicative) - Cuando llegues tarde, me voy a molestar.
When you arrive late (in the future), I’m going to get annoyed. (future, not yet → subjunctive)
Could I say Cuando vuelves de tus vacaciones, habremos terminado…?
For this meaning, no; it sounds off to native speakers.
- Cuando vuelves… (present indicative) suggests:
- a habitual situation (Whenever you come back…), or
- something seen as certain/scheduled, not just “whenever that future moment comes”.
But the sentence is talking about one specific future return that hasn’t happened yet, so Spanish expects the subjunctive:
Why is the future perfect habremos terminado used here?