Proponer Preterite Tense Conjugation in Spanish

The preterite tense of proponer — "to propose" in English — is the form you need for finished actions in the past. This page gives you the full preterite conjugation table for proponer with all six persons, explains exactly how the tense is formed for this verb, shows when to use it with real examples, and finishes with a quiz so you can test yourself. Proponer means to propose, and it covers proposing a plan in a meeting, proposing a toast, proposing a solution and proposing marriage. It is one of the most irregular verbs in this batch: the present is propongo, the preterite is propuse, the future stem is propondr- and the participle is propuesto. To see it in a real sentence: Él propuso un nuevo horario en la reunión. — "He/she proposed a new timetable at the meeting." Work through the table below, then the formation notes, the usage rules and the contrast with the imperfect, and test yourself at the end.

Preterite tense conjugation table: proponer

Every person of proponer in the preterite tense. The gerund is proponiendo and the past participle is propuesto.

Preterite indicative

Person Form
yo propuse
tú propusiste
él/ella/Ud. propuso
nosotros/as propusimos
vosotros/as propusisteis
ellos/ellas/Uds. propusieron

How the preterite indicative of proponer is formed

The preterite indicative of proponer is built from the irregular stem propus- plus the preterite endings for -er verbs. The regular stem would be propon-, but this tense uses propus- instead, so learn the six forms in the table below as a set. The table shows the endings, and the full table above shows them attached to the irregular stem.

Person Ending Form
yo -e propuse
tú -iste propusiste
él/ella/Ud. -o propuso
nosotros/as -imos propusimos
vosotros/as -isteis propusisteis
ellos/ellas/Uds. -ieron propusieron

The gerund of proponer is proponiendo, and the past participle is propuesto — an irregular participle, not the regular form, so learn it as it is. The participle is the form you need for all the perfect tenses with haber.

This tense is irregular for proponer, so the forms in the table above are the ones to learn — do not try to derive them from the regular endings. Proponer is irregular: the preterite stem is propus- (propuse, propuso), the present is propongo, the future stem is propondr-, and the participle is propuesto. Learn these as a set.

When to use the preterite tense of proponer

The preterite tense is not one single use — it covers several situations, and proponer appears in all of them. The five uses below are the ones you will meet most often, each with an example that shows the verb in a natural sentence.

One finished action

The preterite is for a single action that started and finished in the past, with a clear end point. For proponer, this use looks like this: "Yo propuse un nuevo horario en la reunión." — "I proposed a new timetable at the meeting." Notice how the preterite form carries the time meaning on its own, without any extra word for the tense.

A sequence of events

When you tell a story as a chain of events — first this happened, then that — each step takes the preterite. For proponer, this use looks like this: "Él propuso un brindis por los novios." — "He/she proposed a toast to the newlyweds." Notice how the preterite form carries the time meaning on its own, without any extra word for the tense.

A specific time

The preterite goes with specific past time expressions: ayer, el año pasado, anoche, la semana pasada, en 2010. For proponer, this use looks like this: "Nosotros propusimos una solución al problema." — "We proposed a solution to the problem." Notice how the preterite form carries the time meaning on its own, without any extra word for the tense.

An interrupted action

The preterite describes the action that interrupted something else: while one thing was going on, another thing happened once, in the preterite. For proponer, this use looks like this: "Ellos propusieron un plan de trabajo al equipo." — "They proposed a work plan to the team." Notice how the preterite form carries the time meaning on its own, without any extra word for the tense.

A sudden change

The preterite marks a sudden change or the start of a new state in the past. For proponer, this use looks like this: "Tú propusiste un nuevo horario en la reunión." — "You proposed a new timetable at the meeting." Notice how the preterite form carries the time meaning on its own, without any extra word for the tense.

The preterite tense vs the imperfect

Learners often mix up the preterite and the imperfect with proponer. The rule is simple: the preterite is for one finished action in the past, while the imperfect is for an ongoing, habitual or background action in the past. The three pairs below show the same idea in both tenses, so you can feel the difference.

Pair 1: preterite vs imperfect

  • Preterite: "Yo propuse un nuevo horario en la reunión." — "I proposed a new timetable at the meeting."
  • Imperfect: "Yo proponía un nuevo horario en la reunión." — "I used to propose a new timetable at the meeting." The first sentence uses the preterite because it describes a finished action; the second uses the imperfect because it describes a background or repeated action. The verb is the same — only the tense changes the meaning.

Pair 2: preterite vs imperfect

  • Preterite: "Él propuso un brindis por los novios." — "He/she proposed a toast to the newlyweds."
  • Imperfect: "Él proponía un brindis por los novios." — "He/she used to propose a toast to the newlyweds." The first sentence uses the preterite because it describes a finished action; the second uses the imperfect because it describes a background or repeated action. The verb is the same — only the tense changes the meaning.

Pair 3: preterite vs imperfect

  • Preterite: "Nosotros propusimos una solución al problema." — "We proposed a solution to the problem."
  • Imperfect: "Nosotros proponíamos una solución al problema." — "We used to propose a solution to the problem." The first sentence uses the preterite because it describes a finished action; the second uses the imperfect because it describes a background or repeated action. The verb is the same — only the tense changes the meaning.

Example sentences in the preterite tense

Eight natural sentences with proponer in the preterite tense only. Each one uses a form from the table above.

  1. Yo propuse un nuevo horario en la reunión. — I proposed a new timetable at the meeting.
  2. Tú propusiste un brindis por los novios. — You proposed a toast to the newlyweds.
  3. Él propuso una solución al problema. — He/she proposed a solution to the problem.
  4. Nosotros propusimos un plan de trabajo al equipo. — We proposed a work plan to the team.
  5. Vosotros propusisteis un nuevo horario en la reunión. — You all proposed a new timetable at the meeting.
  6. Ellos propusieron un brindis por los novios. — They proposed a toast to the newlyweds.
  7. Yo propuse una solución al problema. — I proposed a solution to the problem.
  8. Él propuso un plan de trabajo al equipo. — He/she proposed a work plan to the team.

Common mistakes

  1. Wrong: Yo proponí un brindis por los novios. — Right: Yo propuse un brindis por los novios. — In the preterite, the correct first-person form is propuse, not proponí. Proponer is irregular: the preterite stem is propus- (propuse, propuso), the present is propongo, the future stem is propondr-, and the participle is propuesto. Learn these as a set.
  2. Wrong: De niño, yo propuse una solución al problema todos los días. — Right: De niño, yo proponía una solución al problema todos los días. — For a repeated habit in the past, use the imperfect (proponía), not the preterite. The preterite (propuse) is for one finished action.
  3. Wrong: Yo propuso un nuevo horario en la reunión. — Right: Yo propuse un nuevo horario en la reunión. — The person matters: propuso is the él/ella/Ud. form, while the yo form is propuse.
  4. Wrong: Yo soy propuesto un brindis por los novios. — Right: Yo he propuesto un brindis por los novios. — Spanish perfect tenses use haber, not ser: he propuesto. Ser plus the participle makes a passive, not a perfect tense.

Quiz: test yourself

Eight questions on the preterite tense of proponer. Choose the right form, then check the answer key below.

  1. Complete the sentence: Yo ___ un nuevo horario en la reunión. (preterite tense) A. propuse B. propusiste C. propuso D. propusimos

  2. Complete the sentence: Tú ___ un brindis por los novios. (preterite tense) A. propusiste B. propuse C. propuso D. propusimos

  3. Complete the sentence: Él ___ una solución al problema. (preterite tense) A. propuso B. propuse C. propusiste D. propusimos

  4. Complete the sentence: Nosotros ___ un plan de trabajo al equipo. (preterite tense) A. propusimos B. propuse C. propusiste D. propuso

  5. Complete the sentence: Vosotros ___ un nuevo horario en la reunión. (preterite tense) A. propusisteis B. propuse C. propusiste D. propuso

  6. Complete the sentence: Ellos ___ un brindis por los novios. (preterite tense) A. propusieron B. propuse C. propusiste D. propuso

  7. Complete the sentence: Yo ___ una solución al problema. (preterite tense) A. propuse B. propusiste C. propuso D. propusimos

  8. Complete the sentence: Él ___ un plan de trabajo al equipo. (preterite tense) A. propuso B. propuse C. propusiste D. propusimos

Answer key

  1. propuse — The yo preterite form of proponer is propuse. The other options are the other persons of the same tense.
  2. propusiste — The tu preterite form of proponer is propusiste. The other options are the other persons of the same tense.
  3. propuso — The el preterite form of proponer is propuso. The other options are the other persons of the same tense.
  4. propusimos — The nosotros preterite form of proponer is propusimos. The other options are the other persons of the same tense.
  5. propusisteis — The vosotros preterite form of proponer is propusisteis. The other options are the other persons of the same tense.
  6. propusieron — The ellos preterite form of proponer is propusieron. The other options are the other persons of the same tense.
  7. propuse — The yo preterite form of proponer is propuse. The other options are the other persons of the same tense.
  8. propuso — The el preterite form of proponer is propuso. The other options are the other persons of the same tense.

Frequently asked questions

When do I use the preterite tense of proponer?

Use the preterite tense of proponer for finished actions in the past. For example: Yo propuse un nuevo horario en la reunión. — "I proposed a new timetable at the meeting." The usage rules above give five situations with examples.

How is the preterite tense of proponer formed?

Take the stem propon- and add the preterite endings for -er verbs. The full table is at the top of this page.

What is the difference between the preterite and the imperfect of proponer?

The preterite describes a finished action, while the imperfect describes an ongoing or repeated past action. Compare Yo propuse un brindis por los novios. with Yo proponía un brindis por los novios. — the verb is the same, but the time meaning changes.

How do I practise the preterite tense of proponer?

Drill the six forms in the table above until you can say them without looking, then use the proponer examples and quiz page for more sentences, and test yourself with the Proponer conjugation page for the full picture across all tenses.

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