What is the future of hacer in Spanish?

Haré, harás, hará, haremos, haréis, harán. Drastically shortened irregular stem har- (not *hac-er) + regular future endings. Haré la tarea = I'll do the homework.

Why does hacer have such a short future stem?

Hacer (and decir) underwent drastic stem shortening historically. The infinitive hac-er compressed to har- in the future / conditional. Only these two Spanish verbs use this extreme shortening; other irregular futures are less drastic.

How do I say it will be hot / cold in Spanish?

Use impersonal hará + weather noun: Hará calor (it'll be hot), hará frío (it'll be cold), hará sol (it'll be sunny). Same pattern as present hace calor, just in the future.

What does hará un año mean?

Literally there will be a year, but functionally it's been about a year. Spanish uses hará + time expression to estimate how long something has been happening: Hará un año que no lo veo = It's been about a year since I've seen him.

How can I master the future of hacer?

Memorize the har- stem and pair it with common contexts: future actions (haré la tarea), weather (hará calor), and time estimation (hará un año). Parrot's videos surface these uses naturally in conversation.

Spanish grammar · Intermediate

Future of Hacer: Haré, Harás, Hará, Conjugation and Use

Written by Sofia Ramirez, Lead Spanish Curriculum Editor · Reviewed May 2026

The future of hacer uses the SHORTENED irregular stem har-: haré, harás, hará, haremos, haréis, harán. Only two Spanish verbs use this drastic shortening: hacer (har-) and decir (dir-).

Mañana haré la tarea.

Tomorrow I'll do the homework.

What it is

The future of hacer uses the drastically shortened stem har- (not the regular *hacer-). Forms: haré, harás, hará, haremos, haréis, harán. Only hacer and decir use this kind of contracted stem in the future / conditional.

In Mañana haré la tarea (Tomorrow I'll do the homework), haré is the future yo form of hacer.

How to spot it

Look for har- + endings: haré, harás, hará, haremos, harán. The very short stem is distinctive; it's NOT *haceré.

Hará calor mañana. — It'll be hot tomorrow.
Haremos lo que podamos. — We'll do what we can.
¿Qué harás? — What will you do?

Hacer and decir share this drastically shortened pattern (har-, dir-). All other irregular future stems are less extreme.

Future of Hacer Quick Reference

Future of hacer, irregular stem har-

Person	Form	Translation
yo	haré	I will do/make
tú	harás	you will do/make
él/ella/Ud.	hará	he/she/it will do/make
nosotros	haremos	we will do/make
vosotros	haréis	you all will do/make (Spain)
ellos/ellas/Uds.	harán	they will do/make

Common Future of Hacer Examples in Spanish

Future of hacer in real contexts:

Future Actions

Haré la cena esta noche.: I'll make dinner tonight.
Haremos la mudanza el sábado.: We'll do the move on Saturday.
Harán una fiesta sorpresa.: They'll throw a surprise party.
¿Qué harás este verano?: What will you do this summer?
Haré ejercicio mañana.: I'll exercise tomorrow.

Most common use: predicting or planning future actions.

Weather Predictions (Hará)

Hará calor mañana.: It'll be hot tomorrow.
Hará frío en invierno.: It'll be cold in winter.
Hará sol este fin de semana.: It'll be sunny this weekend.
Hará viento esta tarde.: It'll be windy this afternoon.
Hará buen tiempo el sábado.: The weather will be nice Saturday.

Future weather expressions use impersonal hará + noun: hará calor, hará frío, hará sol, hará viento.

Present Probability

Hará unos diez minutos que salió.: He probably left about 10 minutes ago.
Hará un año que no lo veo.: It must be a year since I've seen him.
Hará calor afuera.: It must be hot outside.
Harán lo que puedan.: They'll probably do what they can.
Hará falta más tiempo.: More time will probably be needed.

Hará + time expression is common for estimating elapsed time (hará un año = it's been about a year).

Questions and Negatives

¿Qué harás mañana?: What will you do tomorrow?
¿Quién hará la comida?: Who will make the food?
No haré nada hoy.: I won't do anything today.
No haremos preguntas.: We won't ask questions.
¿Cuándo harán la prueba?: When will they do the test?

Common in questions about future plans and in negative predictions.

How to Use the Future of Hacer

Irregular Stem: Shortened to Har-

Hacer drops its second syllable entirely in the future / conditional: hac-er → har-. Then add regular future endings (-é, -ás, -á, -emos, -éis, -án).

hac-er → har- + é = haré.

Drastic stem shortening.

Har- + endings. NOT *haceré.

Only Hacer and Decir Have This Pattern

The drastic stem shortening (har-, dir-) is unique to hacer and decir. All other irregular future stems are less extreme (drop e: habr-; drop e + insert d: tendr-).

hacer → har-. decir → dir-.

Two verbs share this pattern.

Learn har- and dir- together.

Weather and Time Expressions

Hará + noun expresses future weather (hará frío) or estimated elapsed time (hará un año = it's been about a year). These are impersonal uses.

Hará calor. Hará un mes que llegó.

Weather and time conjecture.

Hará for weather + time estimation.

Same Stem as Conditional

The future stem (har-) is the same as the conditional stem. Future: haré. Conditional: haría. Same stem, different endings.

Future: haré. Conditional: haría.

I'll do vs. I would do.

Har- stem covers both tenses.

Common Mistakes with Future of Hacer

Incorrect: Haceré la tarea. — I'll do the homework.

Correct: Haré la tarea. — I'll do the homework.

Hacer has an IRREGULAR future stem: har- (drastically shortened from hac-er). Form is haré, not the regular *haceré.

Incorrect: Hare la cena. — I'll make dinner.

Correct: Haré la cena. — I'll make dinner.

Future yo form carries an accent: haré. Without the accent, the stress shifts and the word changes meaning (hare = hare).

Incorrect: Haran lo que quieran. — They'll do whatever they want.

Correct: Harán lo que quieran. — They'll do whatever they want.

Future ellos form carries an accent: harán. Without the accent, the word is misspelled.

Drastic Stem Changes: Hacer and Decir

Only Two Verbs Use This Pattern

Hacer (har-) and decir (dir-) are the only Spanish verbs with drastically shortened future / conditional stems. All other irregular futures use less extreme changes.

hacer → har-: haré, harás, hará, haremos, haréis, harán.: I'll do...
decir → dir-: diré, dirás, dirá, diremos, diréis, dirán.: I'll say...

Compounds of hacer and decir (deshacer → desharé, predecir → prediré) follow the same shortening.

Hará + Weather Expressions

Future weather uses impersonal hará + weather noun: hará calor (it'll be hot), hará frío (it'll be cold), hará sol (it'll be sunny), hará viento (it'll be windy).

Hará buen tiempo el sábado.: The weather will be nice Saturday.
Hará mucho calor en agosto.: It'll be very hot in August.
Hará fresco por la noche.: It'll be cool at night.

Future weather follows the same pattern as present weather (hace calor → hará calor) and past weather (hizo calor / hacía calor).

Future of Hacer FAQs

What is the future of hacer in Spanish?: Haré, harás, hará, haremos, haréis, harán. Drastically shortened irregular stem har- (not *hac-er) + regular future endings. Haré la tarea = I'll do the homework.
Why does hacer have such a short future stem?: Hacer (and decir) underwent drastic stem shortening historically. The infinitive hac-er compressed to har- in the future / conditional. Only these two Spanish verbs use this extreme shortening; other irregular futures are less drastic.
How do I say it will be hot / cold in Spanish?: Use impersonal hará + weather noun: Hará calor (it'll be hot), hará frío (it'll be cold), hará sol (it'll be sunny). Same pattern as present hace calor, just in the future.
What does hará un año mean?: Literally there will be a year, but functionally it's been about a year. Spanish uses hará + time expression to estimate how long something has been happening: Hará un año que no lo veo = It's been about a year since I've seen him.
How can I master the future of hacer?: Memorize the har- stem and pair it with common contexts: future actions (haré la tarea), weather (hará calor), and time estimation (hará un año). Parrot's videos surface these uses naturally in conversation.