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SpanishConjugationFuture

Saber (to know) · Future

By TutorLily Editorial Team · Last updated

Saber in the Spanish future (futuro simple) is: yo sabré, tú sabrás, él/ella/usted sabrá, nosotros/as sabremos, vosotros/as sabréis, ellos/ellas/ustedes sabrán. The future of saber uses the contracted stem 'sabr-' (not the full infinitive 'saber-'). 'Sabré la verdad' = 'I will know / find out the truth'. The future is also used heavily for conjecture: '¿Qué hora será? — No lo sabré exactamente' (What time is it? I won't know exactly).

saber conjugation in the Future (Futuro simple)
To KnowSaber
I will know
yo sabré
you will know
tú sabrás
he/she will know
él/ella/usted sabrá
we will know
nosotros/as sabremos
you will know
vosotros/as sabréis
they will know
ellos/ellas/ustedes sabrán
Examples

Saber (to know) in context

Sentences that use saber in the future. Tap each to hear it.

Mañana sabré los resultados.

Tomorrow I will know the results.

Pronto sabrás toda la historia.

Soon you will know the whole story.

Mi hermana sabrá qué hacer.

My sister will know what to do.

Sabremos la verdad muy pronto.

We will know the truth very soon.

Sabréis la decisión final el viernes.

You will know the final decision on Friday.

Los jueces sabrán valorar tu esfuerzo.

The judges will know how to value your effort.

Tip

Working with the future

The simple future ("haré", "tendré") competes with the more conversational "voy a + infinitive" construction in everyday Spanish — the going-to form is more common for near-term plans. The simple future shines in two cases: formal or more distant predictions, and conjecture about the present ("¿qué hora será?" = "what time could it be?"). About 12 high-frequency verbs use contracted future stems (har-, dir-, tendr-, pondr-, vendr-, saldr-, podr-, querr-, sabr-, habr-, valdr-, cabr-); the rest just append future endings to the full infinitive.

Questions

Frequently asked questions

How do you conjugate saber in the future?
The future of saber uses the irregular stem 'sabr-': yo sabré, tú sabrás, él/ella/usted sabrá, nosotros/as sabremos, vosotros/as sabréis, ellos/ellas/ustedes sabrán. The infinitive 'saber' contracts to 'sabr-' before the future endings — same pattern as haber → habr-, poder → podr-, caber → cabr-.
Why is the future stem 'sabr-' instead of 'saber-'?
About 12 high-frequency Spanish verbs developed contracted future stems for phonetic economy. Saber, poder, haber, caber, and querer (sabr-, podr-, habr-, cabr-, querr-) drop the infinitive's middle vowel; tener, poner, salir, venir, valer (tendr-, pondr-, saldr-, vendr-, valdr-) replace it with a 'd' to ease pronunciation; hacer and decir (har-, dir-) contract differently. The pattern was driven by everyday repetition — 'saberé' would have been awkward to say repeatedly.
When should I use 'sabré' instead of 'voy a saber'?
Both express future knowledge. 'Sabré' (simple future) feels slightly more formal, more committed, or further in time. 'Voy a saber' (going-to future) is more conversational for nearer-term plans. The simple future also expresses conjecture: '¿Sabrá la respuesta?' = 'Could he know the answer?' — a meaning the going-to future cannot carry.
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More tenses of Saber (To Know)

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Saber (to know) · Subjunctive

More verbs in future

All tenses
Saber (to know)
future
Ser (to be)
future
Estar (to be)
future
Tener (to have)
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