Antes de vs Antes de que — Triggering the Subjunctive

Antes de – Antes de que

The word “antes” always expresses something happening before something else — so you’re always dealing with sequences in time.

But what changes is:

  • Does the sentence have two different people involved?
  • Is there a “que” connecting two clauses?
  • Are you describing something real or something that might happen?

These questions tell you whether you need the infinitive or the subjunctive.

Structure 1: Antes de + infinitive

Use this when:

  • There’s no subject change
  • You’re still talking about the same person
  • The second action is just part of what the subject will do
    (no que, no subjunctive)

Examples:

  • Fui al banco antes de almorzar.
    (I went to the bank before eating lunch.)
    → I went / I ate → same subject
  • Me lavé las manos antes de cocinar.
    (I washed my hands before cooking.)
    → I washed / I cooked → same subject
  • Tenemos que hablar antes de firmar el contrato.
    (We have to talk before signing the contract.)
    → We talk / we sign → same subject

🧠 Think of it like chaining actions together for one person. No need for the subjunctive — it’s just a sequence.

🔸 Structure 2: Antes de que + subjunctive

Use this when:

  • The two parts of the sentence have different subjects
  • The second clause is introduced by “que”
  • You’re referring to something that hasn’t happened yet (so it’s not real yet → subjunctive)

Examples:

  • Voy a salir antes de que llegues.
    (I’m going to leave before you arrive.)
    → I leave / you arrive → different subjects
  • Tienes que hacerlo antes de que se den cuenta.
    (You have to do it before they notice.)
    → You do it / they notice → different subjects
  • Apaga el horno antes de que se queme el pastel.
    (Turn off the oven before the cake burns.)
    → You turn it off / the cake burns → different subjects

🧠 The moment you say “que,” you’re starting a new clause with its own subject and verb — and since the second action hasn’t happened yet, it’s not real → subjunctive.

❗ Quick Test

If you’re unsure which one to use, ask:

  1. Is there a que? → Probably a second subject → check for subjunctive
  2. Can I say the whole sentence with just one person doing both things? → If yes, use infinitive

English often drops or absorbs the equivalent of que, so to spot the subjunctive trigger in Spanish, you need to mentally pull out the hidden clause with its own subject.

Here are 5 English sentences where the que is hidden but required in Spanish:

English: I want to finish this before he gets here.
→ Hidden clause: (before the moment that he gets here)
→ Spanish: Quiero terminar esto antes de que él llegue.

English: Turn off the lights before the baby wakes up.
→ Hidden clause: (before the moment that the baby wakes up)
→ Spanish: Apaga las luces antes de que el bebé se despierte.

English: We should leave before it starts raining.
→ Hidden clause: (before the time that it starts to rain)
→ Spanish: Deberíamos salir antes de que empiece a llover.

English: He left before anyone noticed.
→ Hidden clause: (before the time that anyone noticed)
→ Spanish: Se fue antes de que alguien se diera cuenta.

English: Text me before you come in.
→ Hidden clause: (before the time that you come in)
→ Spanish: Mándame un mensaje antes de que entres.

10 English sentences mixed up between antes de (infinitive) and antes de que (with hidden que, subjunctive trigger).

  1. We always wash our hands before eating.
  2. Finish your homework before your dad gets home.
  3. They called me before making the decision.
  4. Close the door before the dog runs out.
  5. She left before saying goodbye.
  6. Let’s talk before they make any changes.
  7. He showered before going to bed.
  8. Take the photo before the sun goes down.
  9. I’ll send the email before meeting with the team.
  10. We need to finish this before the guests arrive.

Side Note: Future doesn’t matter — it’s all about the subject

Even if something is in the future, you don’t automatically need subjunctive.
It only shows up when there’s a triggering structure like antes de que plus a subject change.

  • Voy a dormir antes de trabajar. ✅ (infinitive — same subject, future)
  • Voy a dormir antes de que empiece la reunión. ✅ (subjunctive — two subjects)
  1. I always drink water before running.
  2. Call me before you leave the house.
  3. We checked the bags before boarding the plane.
  4. Turn off the stove before the food burns.
  5. He likes to stretch before exercising.
  6. You should talk to her before she makes a decision.
  7. I brushed my teeth before going to bed.
  8. Let’s leave before it gets dark.
  9. They reviewed the plan before presenting it.
  10. Hide the gift before the kids come in.