Future tense for plans and predictions

Future tense for plans and predictions in Spanish

Spanish has several ways to talk about the future. For plans and predictions you will most often use two forms:

- The periphrastic future (ir + a + infinitive): used for plans, intentions and near-future events, and for predictions based on present evidence.
- The simple future (futuro simple, the future indicative): used for general predictions, assumptions, promises, offers and formal statements.

The present indicative is also commonly used to describe scheduled events (for example: El tren sale a las 6). Below you will find when and why to use each form, how to form them, many natural examples, common irregular verbs, and typical mistakes to avoid.

What does “future for plans and predictions” mean?

This topic covers the language tools Spanish uses to say what will happen (predictions) and what someone intends or plans to do (plans/intentions). English usually uses "will" and "going to"; Spanish has both equivalents, but they don't match English exactly.

When do I use ir + a + infinitive (the periphrastic future)?

Use ir + a + infinitive (voy a + infinitive, vas a + infinitive, etc.) when:

- You talk about a plan or personal intention.
- Voy a estudiar medicina el próximo año. (I’m going to study medicine next year.)
- Ella va a mudarse en junio. (She’s going to move in June.)

- You describe a near-future action or something already decided.
- Vamos a salir en diez minutos. (We’re going to leave in ten minutes.)

- You make a prediction based on present evidence (it looks like it will happen).
- Mira esas nubes: va a llover. (Look at those clouds: it’s going to rain.)

Examples (all built with ir + a + infinitive):
- Yo voy a llamar a Juan mañana. (I’m going to call Juan tomorrow.)
- ¿Vas a venir al cine? (Are you going to come to the cinema?)
- Ellos no van a poder asistir. (They aren’t going to be able to attend.)
- Nosotros vamos a comprar una casa. (We’re going to buy a house.)

Formation (quick):
- Present of ir + a + infinitive: voy/vas/va/vamos/vais/van + a + infinitive.

Pronoun placement with ir a + infinitive:
- Object pronouns attach to the infinitive or go before the conjugated verb:
- Voy a verlo. / Lo voy a ver. (I’m going to see him/it.)
- Me voy a ir. / Voy a irme. (I’m going to leave.)

When do I use the simple future (futuro simple)?

Use the simple future (hablaré, comerás, viviremos...) when:

- You make a prediction (often not tied to immediate evidence).
- Mañana lloverá. (It will rain tomorrow.)
- Creo que llegarán tarde. (I think they will arrive late.)

- You express assumptions or probability about the present or future.
- ¿Dónde estará Juan ahora? (Where can Juan be now?)
- Estarán en casa. (They’re probably at home.)

- You make promises, offers or quick decisions (in many cases).
- Te ayudaré con la mudanza. (I will help you with the move.)
- Pues, lo haré mañana. (Well, I’ll do it tomorrow.)

- You make formal statements about the future.
- El curso comenzará en septiembre. (The course will start in September.)

Examples of simple future (futuro simple):
- Yo estudiaré esta tarde. (I will study this afternoon.)
- ¿Vendrás a la fiesta? (Will you come to the party?)
- No trabajarán el fin de semana. (They won’t work the weekend.)

Formation (quick):
- Add these endings to the full infinitive: -é, -ás, -á, -emos, -éis, -án.
- hablar: hablaré, hablarás, hablará, hablaremos, hablaréis, hablarán
- comer: comeré, comerás, comerá, comeremos, comeréis, comerán
- vivir: viviré, vivirás, vivirá, viviremos, viviréis, vivirán

Irregular verbs in the simple future

Some verbs use an irregular stem but the same endings. Common irregular stems (followed by an example of the yo form):

- decir → dir- → diré (I will say)
- hacer → har- → haré (I will do/make)
- poder → podr- → podré (I will be able)
- poner → pondr- → pondré (I will put)
- querer → querr- → querré (I will want)
- saber → sabr- → sabré (I will know)
- salir → saldr- → saldré (I will leave)
- tener → tendr- → tendré (I will have)
- venir → vendr- → vendré (I will come)
- haber → habr- → habrá (there will be / auxiliary)
- caber → cabr- → cabré (I will fit)
- valer → valdr- → valdré (I will be worth)

Examples with irregulars:
- Tendré tiempo mañana. (I will have time tomorrow.)
- Dirán la verdad. (They will tell the truth.)
- Habrá problemas si no llegamos. (There will be problems if we don’t arrive.)

When both forms are possible: what's the difference?

Often both ir a + infinitive and the simple future are acceptable. Here are general guidelines:

- Use ir a + infinitive for plans, intentions and near future (more everyday speech).
- Voy a estudiar a las ocho. (I’m going to study at eight.)

- Use the simple future for predictions, assumptions, promises, or more formal statements.
- Estudiaré ingeniería. (I will study engineering.) — could sound like a decision or promise.

- For spontaneous decisions English uses "I will..."; in Spanish you often use the simple future.
- "¿Me ayudas?" — "Sí, te ayudaré." ("Will you help me?" — "Yes, I will help you.")

- For evidence-based predictions, Spanish speakers prefer ir a + infinitive.
- (Evidence) "Está nublado." — "Va a llover." (It’s going to rain.)
- (No evidence) "Creo que lloverá mañana." (I think it will rain tomorrow.)

Other ways to express plans and predictions

- Present indicative for scheduled or firmly arranged events:
- Mañana viajo a Barcelona. (I travel / I’m traveling to Barcelona tomorrow.)
- La reunión empieza a las 9. (The meeting starts at 9.)

- Pensar + infinitive (to intend / to plan):
- Pienso estudiar en el extranjero. (I plan/intend to study abroad.)

- Tener pensado + infinitive (to have planned):
- Tengo pensado cambiar de trabajo. (I’ve planned to change jobs.)

- Estar a punto de / estar por + infinitive (about to / on the verge of):
- Estoy a punto de salir. (I’m about to leave.)
- Está por llegar. (He/She is about to arrive.)

- Probability words used with any future form: probablemente, seguramente, quizá(s), tal vez.
- Probablemente vendrán tarde. (They will probably come late.)

Negation, questions and pronoun placement

Negation:
- Put no before the conjugated verb: No voy a ir. / No iré. (I’m not going to go. / I won’t go.)

Questions:
- Use the same conjugated forms with question intonation or question marks: ¿Vas a venir? ¿Vendrás? (Are you going to come? Will you come?)

Pronoun placement reminders:
- With ir a + infinitive, object pronouns can attach to the infinitive or precede the conjugated verb:
- Voy a comprarlo. / Lo voy a comprar. (I’m going to buy it.)
- With the simple future pronouns attach to the end of the conjugated verb:
- Lo compraré. (I will buy it.)

Time expressions commonly used with future forms

Common time words and phrases you'll see with future expressions:
- mañana, pasado mañana (tomorrow / day after tomorrow)
- esta tarde / esta noche (this afternoon / tonight)
- la semana que viene / la próxima semana (next week)
- en + periodo (en un año = in a year)
- dentro de + periodo (dentro de un rato = in a little while)
- pronto, dentro de poco (soon)

Examples:
- Pasado mañana me mudaré. (The day after tomorrow I will move.)
- En dos años viviremos en otra ciudad. (In two years we will live in another city.)
- La próxima semana voy a empezar un curso. (Next week I’m going to start a course.)

Common mistakes to avoid

- Confusing when to use ir a vs. futuro simple. Both are often possible, but ir a is more natural for plans and near future; futuro simple is common for predictions, promises and formal statements.
- More natural: Voy a estudiar medicina. (plan) — but Estudiaré medicina also works (decision/promise or formal).

- Forgetting to keep the full infinitive when forming the simple future (you must add endings to the infinitive, not to the stem).
- Correct: hablaré (not *hablé + endings).

- Misusing present progressive as a future substitute. "Estoy yendo a estudiar mañana" is unusual; prefer "Voy a estudiar mañana" or "Mañana voy a estudiar." Use estar + gerund for actions in progress now.

- Pronoun placement errors with ir a + infinitive. Remember you can attach to the infinitive (Voy a verlo) or put it before (Lo voy a ver).

- Overusing the simple future for politeness. In many polite requests, the conditional is better: ¿Podrías ayudarme? rather than ¿Podrás ayudarme? (Though both can appear.)

Short glossary

- Periphrastic future (ir + a + infinitive): A two-word construction using the present of ir + a + an infinitive; expresses plans, intentions, and near-future events.
- Futuro simple / Future indicative: One-word conjugation added to the infinitive (hablaré); used for predictions, assumptions, promises and formal statements.
- Infinitive: The base form of the verb (hablar, comer, vivir).
- Stem: The part of the verb used before adding endings for irregular future forms (e.g., decir → dir-).

Quick summary

- Use ir + a + infinitive for plans, intentions and near-future predictions based on evidence. (Voy a estudiar. / Va a llover.)
- Use the simple future (infinitive + endings) for general predictions, assumptions, promises and formal statements. (Estudiaré. / Llegarán tarde.)
- The present indicative is commonly used for scheduled events. (Mañana viajo.)
- Learn the common irregular stems for the simple future (dir-, har-, tendr-, vendr-, etc.).

If you keep these uses and examples in mind and listen for how native speakers choose between "voy a..." and the simple future, you'll develop a natural feel for expressing plans and making predictions in Spanish.