Futuro perifrástico: ir a + infinitivo

If you learn only one way of talking about the future in Spanish, learn this one. The construction ir a + infinitivo — literally "to go to do something" — is how speakers in Spain handle the future the vast majority of the time in everyday conversation. Walk into any café in Madrid, sit down with a group of friends planning their weekend, and you will hear voy a, vamos a, and vais a in almost every sentence. The morphological future (hablaré, comeré) exists and is alive, but in spoken Spain it has been pushed toward predictions, formal contexts, and conjecture. For ordinary plans and intentions, this periphrasis is the default.

How it is built

The construction has three pieces, in this order:

1. The verb ir conjugated in the present indicative (matching the subject).
2. The preposition a (always — never omitted).
3. An infinitive (the dictionary form of any verb: -ar, -er, -ir).

Here is the conjugation of ir in the present, which you will need to memorise cold:

Notice that the second slot — the preposition a — never changes and is never dropped. Spanish does not say voy comer the way English says "I'm going to eat." The a is mandatory.

Why this construction took over

Romance languages have been replacing their morphological future with a "go + infinitive" pattern for centuries — French je vais manger does exactly the same thing, and even English uses "I'm going to eat" alongside "I will eat." The reasoning is intuitive: a movement toward a goal is a natural metaphor for an intention. When you say voy a llamarte, you are picturing yourself moving (mentally, at least) toward the act of calling.

In Spain specifically, the morphological future (llamaré) has been narrowed in everyday speech to a few specific jobs: weather forecasts, news headlines, formal promises, predictions about distant events, and — crucially — expressing probability about the present (serán las cinco, "it's probably five"). That has left ir a + infinitivo as the default for anything you actually plan to do.

What it actually means

The periphrasis covers a range of future meanings that English speakers will recognise:

Immediate intentions — something you have just decided or are about to do.

Planned events — arrangements that already exist in your calendar.

Predictions based on present evidence — when something visible right now makes you forecast what comes next.

Announcing what you are about to say or do in a discourse — a "framing" use that is very common.

The vosotros form: the peninsular giveaway

In Spain, the second-person plural form is vais, and you will hear it constantly in any group setting. Latin American speakers use van (the ustedes form) instead. This single difference is one of the clearest markers that you are listening to peninsular Spanish.

The form is straightforward — vais + a + infinitive — but English speakers often forget the vosotros exists at all and default to a third-person plural, which to a Spaniard sounds oddly formal or geographically displaced.

"Ir a + infinitive" vs "ir a + place"

A common source of confusion for English speakers: the verb ir can also mean to physically go somewhere, and that use also takes the preposition a (followed by a noun, not an infinitive). Compare:

The distinction is purely about what follows a: a noun (or noun phrase with an article) signals a destination; an infinitive signals a future action. Spanish lets you even combine them in one sentence:

Here, the first a la playa is the destination, and the second a nadar expresses purpose ("in order to swim"). Don't let the doubled-up *a*s rattle you — Spanish is perfectly comfortable with this.

Pronoun placement

Object and reflexive pronouns can either go before the conjugated ir or attached to the end of the infinitive. Both are equally correct, equally common, and mean exactly the same thing:

When you stack multiple pronouns, they stay together as a unit — you can place the whole cluster before ir or after the infinitive, but you cannot split them.

Negation and questions

Negate by putting no before the whole construction. Don't try to insert it between ir and the infinitive.

For questions, simply use intonation (or invert) — no auxiliary verb shuffling like English requires.

How "ir a + inf" differs from English "going to"

English "going to" and Spanish ir a + infinitivo overlap heavily but are not identical. Three real divergences:

1. Spanish uses it where English would say "will." Te voy a echar de menos is more natural than te echaré de menos in conversation, even though English speakers would say "I'll miss you," not "I'm going to miss you."
2. Spanish has no contracted "gonna." The construction stays voy a — no fusion. Pronounce both syllables.
3. Spanish doesn't allow "be going to be going to." English can say "I'm going to be going to the gym" (habitually). Spanish does not double up: you say voy a ir al gimnasio (one ir), or for the habitual sense use the present (voy al gimnasio).

Common Mistakes

Key Takeaways

• Ir a + infinitivo is the default future in spoken peninsular Spanish — use it for plans, intentions, and near-future events.
• The structure is rigid: present-tense ir
  • a
    • infinitive. The a is never optional.
• The vosotros form is vais a + infinitivo — a clear peninsular marker.
• Pronouns can go before ir (te voy a ver) or attach to the infinitive (voy a verte); both are equally good.
• Don't confuse ir a + infinitive (a future action) with ir a + place (physical movement). The clue is what follows a: a verb or a noun.