coser Imperfect Conjugation
coser — to sew
Imperfect of 'coser': cosía, cosías, cosía, cosíamos, cosíais, cosían, for ongoing or habitual past actions.
coser Imperfect Forms
When to Use the Imperfect
Use the imperfect of 'coser' to describe actions that were happening continuously in the past, or actions that were done habitually. Think background details or repeated actions.
Notes on coser in the Imperfect
'Coser' is regular in the imperfect indicative. The endings are standard for -er verbs.
Example Sentences
Cuando era niño, mi abuela me cosía la ropa.
When I was a child, my grandmother used to sew my clothes.
él/ella/usted
Yo cosía mientras mi madre cocinaba.
I was sewing while my mother was cooking.
yo
¿Tú cosías tus propios disfraces?
Did you used to sew your own costumes?
tú
Ellos cosían mantas para los necesitados.
They were sewing blankets for those in need.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using the imperfect for a single, completed past action.
Correct: For sewing one specific item that was finished, use the preterite ('cosió'), not the imperfect ('cosía').
Why: The imperfect describes ongoing or habitual past actions, not completed ones.
Mistake: Confusing 'cosía' (yo/él/ella/usted) with 'cosías' (tú).
Correct: Remember the 's' for the 'tú' form: 'yo cosía', 'tú cosías'.
Why: A common conjugation slip-up.
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Related Tenses
Present
yo: coso
Present tense of 'coser': coso, coses, cose, cosemos, coséis, cosen, used for current actions, habits, and general truths.
Preterite
yo: cosí
The preterite of 'coser' is regular: cosí, cosiste, cosió, cosimos, cosisteis, cosieron.
Future
yo: coseré
Future tense of 'coser': coseré, coserás, coserá, etc., for actions that will happen.
Conditional
yo: cosería
Conditional of 'coser': cosería, coserías, cosería, etc., for 'would' actions, polite requests, or future-in-the-past.
Present Subjunctive
yo: cosa
Present subjunctive of 'coser' (cosa, cosas, etc.) used after expressions of doubt, desire, emotion, and uncertainty.
Imperfect Subjunctive
yo: cosiera
Imperfect subjunctive of 'coser' (cosiera/cosiese forms) used for past hypotheticals, wishes, or polite requests.
Affirmative Imperative
yo: cose
Imperative 'coser' forms: cose (tú), cosa (usted), cosamos (nosotros), cosed (vosotros), cosan (ustedes).
Negative Imperative
yo: no cosas
Negative imperative 'coser' forms: no cosas (tú), no cosa (usted), no cosamos (nosotros), no cosáis (vosotros), no cosan (ustedes).