Una vez que llegó, todo cambió.

Questions & Answers about Una vez que llegó, todo cambió.

Why is llegó in the indicative here, instead of the subjunctive we are learning in this lesson?
The time clauses in this lesson only trigger the subjunctive when they refer to an anticipated future event. Because this sentence talks about a completed action in the past (he already arrived), the regular indicative past tense is required.
How would this sentence look if it were set in the future?
To say "Once he arrives, everything will change," you apply the rule from this lesson. Since the arrival is a pending future action, you must use the present subjunctive: Una vez que llegue, todo cambiará.
Can I replace una vez que with the phrases en cuanto or apenas from this lesson?
Yes! You could say En cuanto llegó, todo cambió or Apenas llegó, todo cambió. Both mean "As soon as he arrived, everything changed." Because they still describe a completed past event, they also take the indicative past tense (llegó).
Why do we need the que in una vez que?
In Spanish, to use "once" as a conjunction connecting to a new clause (a new subject and verb), you must include que. You can't just say una vez llegó. Literally, it translates to "one time that he arrived".

Learn Una vez que llegó, todo cambió and more in Spanish

All course content and exercises are completely free — no paywalls, no trial periods, no signup needed.

  • Practice with interactive exercises
  • Track your progress with spaced repetition
  • Learn at your own pace — completely free