Concessive conjunctions express the idea of "although" or "even if" — the main clause happens despite what the subordinate clause says. In Spanish, the most important concessive conjunction is aunque, which is unusual because it can take either the subjunctive or the indicative, and the choice significantly changes the meaning.
The core contrast
Aunque means two slightly different things depending on the mood of the verb that follows it:
- Aunque + indicative = "although" (the speaker accepts the clause as a fact)
- Aunque + subjunctive = "even if" (the speaker treats the clause as hypothetical or concessive)
Aunque llueva, iremos al parque.
Even if it rains, we'll go to the park. (it may or may not rain)
In the first sentence, the rain is a real, present fact, and the speaker concedes it before announcing the plan. In the second, the rain is a hypothetical possibility, and the speaker is committing to the plan regardless.
When to use the indicative with aunque
Use the indicative when the clause describes something the speaker accepts as true. You might not like it, but you're not doubting it.
Aunque estudia mucho, siempre saca malas notas.
Although she studies a lot, she always gets bad grades.
In these examples, the speaker is reporting a fact — the person really does have money, really does study a lot — and then observing that the main clause happens despite it.
When to use the subjunctive with aunque
Use the subjunctive when the clause is hypothetical, uncertain, or offered as a concession without committing to its truth.
Aunque sea caro, lo voy a comprar.
Even if it's expensive, I'm going to buy it.
Aunque me lo pidas, no te lo daré.
Even if you ask me for it, I won't give it to you.
The speaker in the first sentence is saying "I don't care how expensive it turns out to be." The speaker in the second is saying "regardless of any request you might make." Both clauses are framed hypothetically, not factually.
The subjective difference
Sometimes the choice is less about objective fact and more about how the speaker wants to frame the information. Even a known fact can be presented as a concession using the subjunctive, to soften the assertion or to signal that the speaker does not consider it an obstacle.
Aunque sea tarde, llámame.
Even if it's late, call me.
The speaker may well know it's already late. Using the subjunctive here downplays the lateness, treating it as a potential objection rather than a firm fact.
A pesar de que
A pesar de que (in spite of the fact that, despite) follows the same pattern as aunque: indicative for facts, subjunctive for hypotheticals. In everyday speech, a pesar de que is more often used with the indicative, because the construction naturally lends itself to conceding something known.
A pesar de que llueve, salimos a caminar.
Despite the fact that it's raining, we're going for a walk.
A pesar de que esté cansado, seguirá trabajando.
Even if he's tired, he'll keep working.
Other concessive expressions
Several other expressions can introduce concessive clauses. Each one can take either mood, with the same factual/hypothetical distinction:
- aun cuando — even when, even if
- por más que — no matter how much
- por mucho que — however much
- así — even if (formal/literary)
Por más que lo intente, no puedo abrir esta botella.
No matter how much I try, I can't open this bottle. (hypothetical, subjunctive)
Por mucho que estudies, tienes que descansar también.
However much you study, you also have to rest.
Por si acaso and related expressions
A related phrase is por si (acaso) ("just in case"), which introduces a precaution. It typically takes the indicative in everyday Latin American Spanish, though the subjunctive (with imperfect subjunctive) is also heard.
Lleva un paraguas por si acaso llueve.
Take an umbrella just in case it rains.
For other adverbial triggers, see purpose clauses and condition clauses.
Related Topics
- Adverbial: Time (Cuando, Hasta que)B2 — Time conjunctions that take the subjunctive when referring to future events in Spanish.
- Adverbial: Condition (A menos que, Con tal de que)B2 — Conditional conjunctions that always trigger the present subjunctive in Spanish.
- Subjunctive vs Indicative: Key ContrastsB2 — Side-by-side comparisons of the indicative and subjunctive in Spanish across the most common triggers.