What is the preterite of buscar in Spanish?

The preterite of buscar is: busqué, buscaste, buscó, buscamos, buscasteis, buscaron. The yo form changes c to qu (busqué, not buscé) to preserve the hard k sound before é. All other forms follow the standard regular -ar preterite pattern.

Why is the yo form busqué and not buscé?

Spanish spelling rules require c to become qu when it appears before e or i, to keep the hard k sound. Buscé would be pronounced bus-SEH (with a soft c, like English s). Busqué is pronounced bus-KEH (with a hard k). The u is silent; it's purely a spelling fix.

When does buscar need the personal a?

When the direct object is a person (or a personified animal), Spanish requires the personal a: Busqué a mi madre (I looked for my mother), Buscamos al perro (We searched for the dog). When the direct object is a thing, no a is used: Busqué mis llaves (I looked for my keys).

What other verbs follow the same c-to-qu spelling pattern?

All -car verbs: tocar (toqué), sacar (saqué), explicar (expliqué), atacar (ataqué), aplicar (apliqué), buscar (busqué), educar (eduqué), criticar (critiqué). The yo preterite always changes c to qu to preserve the hard sound.

How can I learn to use the preterite of buscar naturally?

Buscar comes up constantly: searching for lost items, looking up information, picking up family, hunting for jobs. Parrot's short-form videos feature these contexts heavily, so the c-to-qu spelling rule becomes automatic through exposure to native speakers using busqué, buscó, and buscaron in everyday recounts.

Spanish grammar · Intermediate

Preterite of Buscar: All Forms with Examples

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

The preterite of buscar is regular except for a c-to-qu spelling change in the yo form (busqué) to preserve the hard k sound before é. The other forms (buscaste, buscó, buscamos, buscasteis, buscaron) follow the standard -ar preterite pattern.

Busqué mis llaves por toda la casa.

I searched for my keys all over the house.

What it is

Buscar's preterite is regular except for one spelling rule: the yo form changes c to qu to preserve the hard k sound before é. The result is busqué, not buscé. All other forms follow the standard -ar preterite pattern: buscaste, buscó, buscamos, buscasteis, buscaron.

In Busqué mis llaves por toda la casa (I searched for my keys all over the house), busqué marks one completed search. The preterite frames the searching as a finished event, not an ongoing or habitual activity.

How to spot it

The yo form busqué is the only one with the spelling change. The other five forms are straightforward regular -ar preterite (buscaste, buscó, buscamos, buscasteis, buscaron).

Busqué tu número en mi teléfono. — I looked up your number on my phone.
Buscó trabajo durante meses. — She looked for work for months.
Buscaron información en línea. — They searched for information online.

The c-to-qu spelling rule applies to all -car verbs (buscar, tocar, sacar, explicar, atacar). The qu is needed to keep the hard k sound before é.

Preterite of Buscar Quick Reference

Preterite of buscar, all six forms

Person	Form	Translation
yo	busqué	I searched / looked for
tú	buscaste	you searched / looked for
él/ella/Ud.	buscó	he, she, you (formal) searched / looked for
nosotros	buscamos	we searched / looked for
vosotros	buscasteis	you all searched / looked for (Spain)
ellos/Uds.	buscaron	they, you all searched / looked for

Common Preterite of Buscar Examples in Spanish

Buscar covers searching, looking for, picking up, and seeking out. The preterite frames each search as a completed event, often with a specific outcome.

Searching for Lost Items

Busqué mis llaves en todos lados.: I searched for my keys everywhere.
Buscó su pasaporte antes del viaje.: He searched for his passport before the trip.
Buscamos el control remoto media hora.: We searched for the remote for half an hour.
¿Buscaste tu teléfono en el coche?: Did you look for your phone in the car?
Buscaron a su perro toda la noche.: They searched for their dog all night.

Searching for lost items is the prototypical use of buscar. The preterite frames the search session as a completed event, regardless of whether it succeeded.

Looking Up Information

Busqué la palabra en el diccionario.: I looked up the word in the dictionary.
Buscaron la receta en internet.: They searched for the recipe online.
Buscó la dirección en el mapa.: She looked up the address on the map.
Buscamos el horario del tren.: We looked up the train schedule.
¿Buscaste el artículo que te recomendé?: Did you look up the article I recommended?

Buscar covers looking up information in books, online, or on maps. The preterite captures the act of searching as a completed step in a larger task.

Looking for Opportunities / People

Busqué trabajo durante seis meses.: I looked for work for six months.
Buscamos casa por toda la ciudad.: We looked for a house all over the city.
Buscó pareja en aplicaciones de citas.: He looked for a partner on dating apps.
Buscaron ayuda profesional.: They sought professional help.
¿Buscaste alguien que te acompañara?: Did you look for someone to come with you?

Buscar covers seeking jobs, housing, relationships, or assistance. The preterite frames the search as a defined chapter, often with a closing outcome.

Picking Up People

Busqué a mi hija al colegio.: I picked up my daughter from school.
Buscamos a mis padres al aeropuerto.: We picked up my parents at the airport.
Buscó a su amigo al hotel.: He picked up his friend at the hotel.
Buscaron a los invitados a la estación.: They picked up the guests at the station.
¿Buscaste a tu hermano al trabajo?: Did you pick up your brother from work?

Buscar a alguien also means to pick someone up (in Spain especially). The preposition a + person is mandatory when picking up a person.

How to Form the Preterite of Buscar

c → qu in the Yo Form

In Spanish, c is pronounced hard (like English k) before a, o, u, but soft (like English s or Castilian th) before e and i. To preserve the hard k sound in the yo preterite, c becomes qu: busqué, not buscé. The u is silent.

buscar → yo → busqué (not buscé).

The u is silent; its only job is to keep the c pronounced as k.

Any -car verb in the yo preterite: replace c with qu, busqué, toqué, saqué.

Other Forms Are Standard -ar

The remaining five forms follow the standard -ar preterite endings: -aste, -ó, -amos, -asteis, -aron. No spelling adjustments because the endings don't start with é or í.

tú buscaste, él buscó, nosotros buscamos, vosotros buscasteis, ellos buscaron.

Standard regular -ar preterite endings everywhere except yo.

Only the yo form is affected by the spelling rule.

Buscar A + Person

When buscar takes a person as a direct object, Spanish adds the personal a before the person. Busqué a mi hija. The a is required and doesn't translate to English.

Busqué a mi hijo en la escuela.

I picked up my son from school.

Person as direct object = personal a. Things as direct object = no a.

Same Pattern: Tocar, Sacar, Explicar

All -car verbs follow the same yo-form spelling rule in the preterite. Tocar → toqué. Sacar → saqué. Explicar → expliqué. Atacar → ataqué. Aplicar → apliqué. The c-to-qu shift only happens in yo; other forms are regular.

Toqué la guitarra. Saqué la basura. Expliqué la idea.

I played the guitar. I took out the trash. I explained the idea.

Any -car verb in yo preterite: qué, never cé.

Common Mistakes with Preterite of Buscar

Incorrect: Yo buscé mis llaves anoche. — I looked for my keys last night. (wrong, c should become qu before é)

Correct: Yo busqué mis llaves anoche. — I looked for my keys last night.

The yo preterite of any -car verb requires c to become qu before é. Buscé (with c) would be pronounced bus-SEH (with a soft c), which doesn't match the hard k sound of the verb. Busqué is the correct spelling and pronunciation.

Incorrect: Busqué mi hija al colegio. — I picked up my daughter from school. (wrong, missing personal a)

Correct: Busqué a mi hija al colegio. — I picked up my daughter from school.

When buscar takes a person as a direct object, the personal a is mandatory: Busqué a mi hija. The a doesn't translate to English but it's required in Spanish whenever a person is the direct object.

Incorrect: Buscaba mis llaves anoche. — I looked for my keys last night. (wrong, imperfect for a specific completed search)

Correct: Busqué mis llaves anoche. — I looked for my keys last night.

A specific completed search with a clear time marker (anoche) takes the preterite (busqué). The imperfect (buscaba) would describe ongoing or habitual searching without a defined endpoint, which doesn't fit a one-time event.

Preterite of Buscar FAQs

What is the preterite of buscar in Spanish?: The preterite of buscar is: busqué, buscaste, buscó, buscamos, buscasteis, buscaron. The yo form changes c to qu (busqué, not buscé) to preserve the hard k sound before é. All other forms follow the standard regular -ar preterite pattern.
Why is the yo form busqué and not buscé?: Spanish spelling rules require c to become qu when it appears before e or i, to keep the hard k sound. Buscé would be pronounced bus-SEH (with a soft c, like English s). Busqué is pronounced bus-KEH (with a hard k). The u is silent; it's purely a spelling fix.
When does buscar need the personal a?: When the direct object is a person (or a personified animal), Spanish requires the personal a: Busqué a mi madre (I looked for my mother), Buscamos al perro (We searched for the dog). When the direct object is a thing, no a is used: Busqué mis llaves (I looked for my keys).
What other verbs follow the same c-to-qu spelling pattern?: All -car verbs: tocar (toqué), sacar (saqué), explicar (expliqué), atacar (ataqué), aplicar (apliqué), buscar (busqué), educar (eduqué), criticar (critiqué). The yo preterite always changes c to qu to preserve the hard sound.
How can I learn to use the preterite of buscar naturally?: Buscar comes up constantly: searching for lost items, looking up information, picking up family, hunting for jobs. Parrot's short-form videos feature these contexts heavily, so the c-to-qu spelling rule becomes automatic through exposure to native speakers using busqué, buscó, and buscaron in everyday recounts.