SpanishConjugationFuture

Hacer (to do) · Future

By TutorLily Editorial Team · Last updated

Hacer in the Spanish future (futuro simple) is: yo haré, tú harás, él/ella/usted hará, nosotros/as haremos, vosotros/as haréis, ellos/ellas/ustedes harán. The future of hacer uses the contracted stem 'har-' (not the full infinitive 'hacer-'). 'Haré' = 'I will do' or 'I will make'. The future is also used for conjecture: '¿Qué hará Juan ahora?' = 'What could Juan be doing now?'

hacer conjugation in the Future (Futuro simple)
To DoHacer
I will do
yo haré
you will do
tú harás
he/she will do
él/ella/usted hará
we will do
nosotros/as haremos
you will do
vosotros/as haréis
they will do
ellos/ellas/ustedes harán
Examples

Hacer (to do) in context

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

Mañana haré la compra.

Tomorrow I will do the shopping.

¿Harás la presentación el viernes?

Will you give the presentation on Friday?

Mi hermana hará un pastel para tu cumpleaños.

My sister will make a cake for your birthday.

Haremos un viaje en Navidad.

We will take a trip at Christmas.

Haréis muchos amigos en la universidad.

You will make many friends at university.

Los técnicos harán la instalación mañana.

The technicians will do the installation tomorrow.

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 hacer in the future?
The future of hacer uses the irregular stem 'har-': yo haré, tú harás, él/ella/usted hará, nosotros/as haremos, vosotros/as haréis, ellos/ellas/ustedes harán. The infinitive 'hacer' contracts to 'har-' before the future endings — same pattern as decir → diré.
Why is the future stem 'har-' instead of 'hacer-'?
About 12 high-frequency Spanish verbs developed contracted future stems for phonetic economy: hacer → har-, decir → dir-, tener → tendr-, poner → pondr-, salir → saldr-, venir → vendr-, querer → querr-, saber → sabr-, poder → podr-, haber → habr-, valer → valdr-, caber → cabr-. The pattern was driven by everyday speech — 'haceré' would have been awkward to repeat.
When should I use 'haré' instead of 'voy a hacer'?
Both are correct. 'Haré' (simple future) feels slightly more formal, more committed, or further in time. 'Voy a hacer' (going-to future) is more conversational and tends to imply nearer-term plans. The simple future also expresses conjecture: '¿Qué hará Juan?' = 'What could Juan be doing?' — a use the going-to future cannot fill.
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