Acabar de + infinitivo: pasado reciente

When something happened a moment ago — minutes, sometimes seconds — Spanish reaches for acabar de + infinitivo. Acabo de llegar ("I just arrived"), acabamos de comer ("we just ate"), acaba de llamar tu madre ("your mum just called"). The construction looks at the recent past from the vantage point of the present: the action is finished, but its freshness still hangs in the air. This page covers the structure, the tense restrictions (this is where most learners get tripped up), and the everyday situations where Spaniards use it constantly.

The structure

Three pieces, always in this order:

1. The verb acabar conjugated to match the subject.
2. The fixed preposition de — not optional, never replaced.
3. An infinitive — any verb in its dictionary form.

The crucial point: acabar here doesn't mean "finish"

The verb acabar on its own means "to finish" — acabé el libro anoche means "I finished the book last night." But in the periphrasis acabar de + infinitive, acabar loses that meaning entirely. It becomes a grammatical marker of recent past, nothing more.

This is why the literal translation of acabo de llegar — "I finish of to arrive" — sounds nonsensical in English. The construction is fixed; the words have stopped behaving compositionally. You memorise it as a unit and move on.

Notice that you can stack acabar de + terminar — acabo de terminar — and the sentence is perfectly natural. The two acabars are doing different jobs: the conjugated one is the periphrasis marker, the infinitive terminar is the lexical "finish."

The tense restriction: only present and imperfect

This is the single most important rule about acabar de + infinitive: it only carries the "just (did)" meaning in the present and the imperfect. In other tenses, acabar de either reverts to its literal meaning ("finish doing") or does not work at all.

• Present: acabo de llegar = "I just arrived" (right now, moments ago).
• Imperfect: acababa de llegar = "I had just arrived" (at some past moment).
• Preterite: acabé de comer = "I finished eating" (literal — completion, not recency).
• Future/conditional: acabaré de comer = "I'll finish eating" (literal, not "I'll have just eaten").

The present and the imperfect are the two tenses that anchor "just" to a moment — present for "just now" relative to speaking, imperfect for "just then" relative to some past reference point.

The imperfect: "had just"

The imperfect form acababa, acababas, acababa, acabábamos, acababais, acababan + de + infinitive is the Spanish equivalent of English "had just done." It locates the recent past relative to another past moment — usually a moment introduced by cuando or by the broader past context.

This is a much cleaner way to say "had just" than the alternative recién había + past participle, which exists in Latin America but is almost never used in Spain. In peninsular Spanish, acababa de is the default for "had just."

How recent is "recent"?

Acabar de + infinitive implies that the action is fresh — usually within the last few minutes, sometimes the last hour. The further back the action, the worse the construction fits.

• Acabo de llegar — minutes ago. Perfect.
• Acabo de comer — minutes to half an hour ago. Perfect.
• Acabo de verlo esta mañana — earlier this morning. Stretches the construction, but acceptable in casual speech.
• Acabo de verlo ayer — yesterday. Wrong. Use the preterite (lo vi ayer) or present perfect (lo he visto).

In peninsular Spanish, the present perfect (he llegado, he comido) handles the "in the recent past, today" range — including events from earlier in the same day. Acabar de sits underneath that, marking only the very recent past, the past that has barely happened.

Pronoun placement

Object and reflexive pronouns work the standard way: either before acabar or attached to the infinitive. Both are equally common and correct.

When pronouns stack on the infinitive, a written accent may be required to preserve stress: acabo de + decir + me + lo → acabo de decírmelo.

Acabar de in the negative

The negative no acabar de + infinitive exists, but it carries a different idiomatic meaning in colloquial peninsular Spanish: "not quite," "not fully." It does NOT mean "not just (did)."

If you want to say "I didn't just arrive" (negating the recent-past meaning), you generally restructure the sentence — no he llegado hace un minuto ("I didn't arrive a minute ago"), or even just no, llegué hace una hora ("no, I arrived an hour ago").

Acabar de vs the present perfect: a peninsular split

Peninsular Spanish loves the present perfect for recent past events (he llegado, he comido esta mañana). So when does a Spaniard pick acabar de over the present perfect?

• Acabar de zooms in on the freshness of the event. The implication is "just now, this very moment." Use it when the recency itself is what you want to communicate.
• Present perfect simply locates the event in a "current" period (today, this morning, this week). It doesn't necessarily mean the event is fresh.

How this differs from English

English uses the adverb "just" (placed between auxiliary and main verb) to mark recent past: "I have just arrived" or, more casually in American English, "I just arrived." Spanish uses a verbal construction instead.

The trade-off: Spanish acabar de is more compact (one construction, predictable form) but less flexible — it only works in present and imperfect. English "just" can attach to virtually any tense ("I will have just finished," "I had just been about to..."), and that flexibility has no clean Spanish equivalent.

For learners coming from English, the main mental shift is:

1. Reach for acabar de in the present whenever you would say "I just (did)."
2. Reach for acababa de in the imperfect whenever you would say "I had just (done)."
3. Don't try to use it in other tenses — if you need to express recency in the future or conditional, restructure with adverbs like recién or hace un momento.

Common Mistakes

Key Takeaways

• Acabar de + infinitivo means "to have just (done something)" — the very recent past, usually within minutes.
• The construction works only in present (acabo de llegar = "I just arrived") and imperfect (acababa de llegar = "I had just arrived"). In other tenses, acabar de reverts to its literal meaning of "finish."
• The preposition de is required and never replaced.
• Acabar here does NOT mean "finish" — the construction is a fixed unit. Don't try to translate it word-for-word.
• The recency window is roughly minutes to an hour; "yesterday" is too far back.
• No acabar de + infinitive idiomatically means "not quite + infinitive" — no acabo de entender = "I don't quite understand." It does not negate the recent-past meaning.
• Pronouns go either before acabar (te acabo de llamar) or attached to the infinitive (acabo de llamarte).
• In peninsular Spanish, acababa de is the standard way to say "had just" — far more common than the Latin American recién había.