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Two people working together to plant a small tree in a garden.

cooperar Preterite Conjugation

cooperarto cooperate

A2regular -ar★★★★
Quick answer:

The preterite of cooperar is regular: cooperé, cooperaste, cooperó, cooperamos, cooperasteis, cooperaron.

cooperar Preterite Forms

yocooperé
cooperaste
él/ella/ustedcooperó
nosotroscooperamos
vosotroscooperasteis
ellos/ellas/ustedescooperaron

When to Use the Preterite

Use the preterite tense to talk about specific, completed actions of cooperating in the past. For example, 'I cooperated yesterday' or 'They cooperated on that one occasion'. It emphasizes the action as finished.

Notes on cooperar in the Preterite

Cooperar is a regular -ar verb and is completely regular in the preterite tense. All forms follow the standard conjugation pattern.

Example Sentences

  • Yo cooperé con el equipo en el proyecto.

    I cooperated with the team on the project.

    yo

  • ¿Cooperaste en la cena de anoche?

    Did you cooperate on last night's dinner?

  • Ella cooperó para resolver el problema.

    She cooperated to solve the problem.

    él/ella/usted

  • Ellos cooperaron para limpiar la playa.

    They cooperated to clean the beach.

    ellos/ellas/ustedes

Common Mistakes

  • Mistake: Using the imperfect 'cooperaba' instead of the preterite 'cooperé' for a single past action.

    Correct: Use 'cooperé' for a specific instance of cooperation that started and finished.

    Why: The imperfect describes ongoing or habitual past actions, while the preterite marks completed events.

  • Mistake: Forgetting the accent on the 'yo' form 'cooperé'.

    Correct: The 'yo' form needs an accent on the final 'e': cooperé.

    Why: The accent distinguishes this preterite form and marks the stress.

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