El Pretérito Indefinido

The pretérito indefinido is the standard past tense for completed events in Spanish. Ayer comí pizza. La semana pasada fuimos a Madrid. El año pasado estudié inglés. If the action is finished, in a closed time frame in the past, and you can point to when, it goes in pretérito indefinido.

This is the workhorse past tense across most of Latin America. In Spain, it shares territory with the pretérito perfecto (which covers recent past). The boundary between the two is one of the most-discussed nuances in Spanish grammar.

How to form it

The pretérito indefinido has two regular endings (-ar verbs have one set, -er/-ir verbs share another) and a substantial number of irregular verbs.

-ar verbs (hablar)

-er and -ir verbs (comer, vivir)

Irregular verbs — the strong-root family

A significant number of common verbs have irregular pretérito indefinido stems and use a special set of endings. These are unavoidable. The most-used ones:

Patterns to notice:

• All take -e, -iste, -o, -imos, -isteis, -ieron as endings (no accent marks, no -í/-ió).
• Decir, traer, conducir drop the -i- in the third-person plural: dijeron not dijieron.

The ser/ir homonym

Ser and ir share the same pretérito indefinido forms:

Fui can mean I was (ser) or I went (ir), depending on context.

Fui a Madrid. — I went to Madrid. Fui presidente. — I was president.

Spelling-change verbs

A few -ar verbs change spelling in the first-person singular to preserve sound:

When to use it

1. Discrete, completed actions in a closed time frame

Ayer comí pizza. — I ate pizza yesterday. La semana pasada vi una película. — Last week I saw a movie.

Time markers that trigger pretérito indefinido: ayer, anoche, la semana pasada, el año pasado, en 1990, hace tres días, el lunes.

2. Sequence of completed actions

Me levanté, desayuné y salí. — I got up, had breakfast, and left.

The pretérito indefinido is the tense of narrative chains.

3. Action of defined duration (now ended)

Vivieron en México durante diez años. — They lived in Mexico for ten years. (The ten years are over.) Estudié español durante tres meses. — I studied Spanish for three months. (Done.)

This contrasts with imperfecto for ongoing/habitual states. Vivía en México (I was living / used to live in Mexico) is different from Viví en México durante diez años (I lived in Mexico for ten years — closed period).

The pretérito perfecto vs. pretérito indefinido divide

This is the most-discussed past-tense choice in Spanish.

In Spain:

• He comido pizza hoy. (today → pretérito perfecto)
• Comí pizza ayer. (yesterday → pretérito indefinido)

In Latin America:

• Comí pizza hoy. (today → still pretérito indefinido!)
• Comí pizza ayer. (yesterday → pretérito indefinido)

For Latin American Spanish, you can use pretérito indefinido for almost any completed past action, including today’s events. The pretérito perfecto is reserved for life-experience statements (nunca he comido sushi).

For Spain Spanish, today vs. yesterday is a hard line: pretérito perfecto for the speaker’s current temporal frame, pretérito indefinido for closed past periods.

What you don’t need to do

You don’t need to memorise every irregular verb on day one. The fifteen most common (above) cover the visible majority.

You don’t need to decide between regional varieties — pick one (Spain or Latin America) and stick with it. Either is correct.

You don’t need to think about the difference between pretérito perfecto and pretérito indefinido at A1. At A2, when the regional choice becomes important, you’ll start making the distinction.

Common confusions

• Nosotros form is identical in -ar present and pretérito indefinido. Hablamos can mean we speak (present) or we spoke (past). Context decides. Same for -ir: vivimos is both we live and we lived.
• Fui is both ser and ir. Fui a la playa (I went to the beach) vs. Fui doctor (I was a doctor). Context decides.
• Irregular indefinidos take special endings. Tuve, estuve, puse end in -e, not -í. The third person ends in -o, not -ió (e.g., tuvo, not tuvió).
• Spelling changes are mandatory. Busqué, not bucé. Llegué, not llegé. The -qu-, -gu-, -c- changes preserve sound.

Where you’ll meet it in the library

The pretérito indefinido is the action tense. Especially heavy use in:

• Don Quijote (A2+) — Cervantes uses pretérito indefinido for the knight’s adventures. The windmills, the inns, the duels, the rescues — all narrated in indefinido. Reading any action chapter is a drill in this tense.
• Any Spanish novel, short story, or news article. The indefinido is the tense of completed events. Every report of yesterday’s news, every biographical sketch, every action scene leans on it.