Irregular Simple Future Forms

Introduction

There are two ways to form the future tense in Spanish: the informal future (ir + a + infinitive) and the simple future (el futuro simple).

The simple future has both regular forms and irregular forms. These notes focus on the irregular forms.

The simple future has relatively few irregular verbs, and they fall into three distinct categories:

  • those that drop the e or i from the infinitive ending and add a d
  • those that simply drop the e or i from the infinitive ending
  • those that don't follow any predictable pattern and must simply be memorized

Forms that Drop the e or i from the Infinitive Ending and Add a d

Overview

Only -er and -ir verbs fall into this category.

To form the future with verbs in this category, simply remove the e or i from the infinitive ending, add a d, then add the simple future endings.

Conjugation Example: Tener

Subject Verb Conjugations
yo tendré
tendrás
él, ella, usted tendrá
nosotros tendremos
vosotros tendréis
ellos, ellas, ustedes tendrán

Other Verbs like Tener

Infinitive Simple Future Stem
poner pondr-
valer valdr-
salir saldr-
venir vendr-

Tendrá un profesor bueno en esa clase.
You will have a good professor in that class.
Pondré el pastel en la mesa.
I will put the cake on the table.

Forms that Drop the e or i from the Infinitive Ending

Overview

Only -er verbs fall into this category.

To form the future with verbs in this category, simply remove the e or i from the infinitive ending, then add the simple future endings.

Conjugation Example: Poder

Subject Verb Conjugations
yo podré
podrás
él, ella, usted podrá
nosotros podremos
vosotros podréis
ellos, ellas, ustedes podrán

Other Verbs like Poder

Infinitive Simple Future Stem
caber cabr-
haber habr-
saber sabr-
querer querr-

Podrás hablar español muy pronto.
You will be able to speak Spanish very soon.
Habrá mucha gente en la fiesta.
There will be many people at the party.

Irregular stems

Overview

The verbs decir (to say) and hacer (to make/to do) have irregular stems that must be memorized.

Verbs that have either of these two verbs as their root, such as predecir (to predict) and rehacer (to redo), follow the same conjugation patters as decir and hacer in the simple future

Conjugation Examples: Decir and Hacer

Subject Decir Hacer
yo diré haré
dirás harás
él, ella, usted dirá hará
nosotros diremos haremos
vosotros diréis haréis
ellos, ellas, ustedes dirán harán

Diréis el cuento de tu viaje a Argentina.
You will tell your story of your trip to Argentina.
Ellos harán el pastel para mi mamá.
They will make the cake for Mom.