Simple Future in Spanish

Overview

The simple future tense (futuro simple) in Spanish is used to talk about actions that will happen in the future, make predictions, and express probability about the present. At the B1 level, this tense opens up a wide range of expression -- from making plans and promises to speculating about situations.

One of the most appealing aspects of the Spanish future tense is its formation: you simply take the full infinitive of the verb and add a set of endings. This means you do not need to worry about removing infinitive endings or identifying stem vowels the way you do with other tenses. The endings are the same for all three verb groups (-ar, -er, -ir).

However, there are about a dozen high-frequency verbs with irregular stems. These irregular stems must be memorized, but the good news is that the endings remain identical to the regular pattern.

How It Works

Regular Formation

Take the full infinitive and add the future endings:

Person	Ending	Hablar (to speak)	Comer (to eat)	Vivir (to live)
yo	-é	hablaré	comeré	viviré
tú	-ás	hablarás	comerás	vivirás
él/ella/usted	-á	hablará	comerá	vivirá
nosotros/as	-emos	hablaremos	comeremos	viviremos
vosotros/as	-éis	hablaréis	comeréis	viviréis
ellos/ellas/ustedes	-án	hablarán	comerán	vivirán

Irregular Stems

These verbs have modified stems but use the same endings:

Verb	Irregular Stem	Example (yo)
tener	tendr-	tendré
salir	saldr-	saldré
venir	vendr-	vendré
poner	pondr-	pondré
valer	valdr-	valdré
poder	podr-	podré
saber	sabr-	sabré
haber	habr-	habrá
caber	cabr-	cabré
hacer	har-	haré
decir	dir-	diré
querer	querr-	querré

The irregulars fall into three patterns:

1. Drop the vowel: poner → pondr-, tener → tendr-, salir → saldr-, venir → vendr-, valer → valdr-
2. Drop the vowel: poder → podr-, saber → sabr-, haber → habr-, caber → cabr-
3. Replace the ending: hacer → har-, decir → dir-

Uses of the Simple Future

Use	Example	Translation
Future actions	Mañana iré al cine.	Tomorrow I will go to the cinema.
Predictions	Lloverá esta tarde.	It will rain this afternoon.
Promises	Te llamaré mañana.	I will call you tomorrow.
Probability (present)	¿Dónde estará Juan?	Where could Juan be? / I wonder where Juan is.
Commands (formal)	No matarás.	You shall not kill.

Examples in Context

Spanish	English	Note
Mañana iré al cine.	Tomorrow I will go to the cinema.	Regular future action
Tendrás que esperar.	You will have to wait.	Irregular stem tendr-
¿Vendrás a la fiesta?	Will you come to the party?	Irregular stem vendr-
Haremos el trabajo juntos.	We will do the work together.	Irregular stem har-
El verano será caluroso.	The summer will be hot.	Prediction
¿Qué hora será?	What time could it be?	Probability about the present
Saldremos a las ocho.	We will leave at eight.	Irregular stem saldr-
Te lo diré mañana.	I will tell you tomorrow.	Irregular stem dir-
No podré ir a la reunión.	I won't be able to go to the meeting.	Irregular stem podr-
Sabrás la respuesta pronto.	You will know the answer soon.	Irregular stem sabr-

Common Mistakes

Adding endings to irregular stems incorrectly

• Wrong: Yo teneré tiempo.
• Right: Yo tendré tiempo.
• Why: Irregular verbs change their stem. You must memorize the modified stem (tendr-) and then add the regular endings.

Confusing future with ir a + infinitive

• Wrong: Using only ir a + infinitive for all future situations.
• Right: Using the simple future for predictions, probability, and formal contexts: Será difícil (It will be difficult).
• Why: While ir a + infinitive is very common in speech for planned actions, the simple future is preferred for predictions, conjectures, and more formal registers.

Forgetting the accent marks

• Wrong: Yo hablare mañana.
• Right: Yo hablaré mañana.
• Why: All future forms except the nosotros form (-emos) carry a written accent. These accents are mandatory and affect meaning.

Using future after cuando

• Wrong: Cuando llegaré, te llamaré.
• Right: Cuando llegue, te llamaré.
• Why: After cuando referring to the future, Spanish uses the subjunctive, not the future tense. The future appears only in the main clause.

Usage Notes

In everyday spoken Spanish, the construction ir a + infinitive (near future) is often preferred over the simple future for planned actions, especially in Latin America. You might hear Voy a comer more often than Comeré in casual conversation.

However, the simple future remains essential for expressing probability or conjecture about the present (Serán las tres -- "It must be around three o'clock") and for predictions (Mañana hará frío). This "probability" use is very common and distinctly Spanish -- English has no direct equivalent.

The simple future is also more common in written Spanish, news reporting, and formal speech across all regions.

Practice Tips

• Group the irregular stems by pattern to make memorization easier: the "drop the vowel and add -dr" group (tendr-, pondr-, saldr-, vendr-, valdr-) is the largest and most systematic.
• Practice the probability use by wondering aloud: ¿Dónde estará mi teléfono? ¿Qué hora será? ¿Quién será? This is a uniquely Spanish construction that will impress native speakers.
• Compare sentences using ir a + infinitive and the simple future to feel the subtle difference in register and certainty.

Related Concepts

• Prerequisite: Near Future (ir a + inf)
• Next steps: Simple Conditional, Future Perfect