coser Imperfect Subjunctive Conjugation
coser — to sew
Imperfect subjunctive of 'coser' (cosiera/cosiese forms) used for past hypotheticals, wishes, or polite requests.
coser Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
This tense is for hypothetical situations in the past, wishes that didn't come true, or to make polite requests. For 'coser', you might say 'If I had sewn...' or 'I wish you would sew...'.
Notes on coser in the Imperfect Subjunctive
The imperfect subjunctive of 'coser' is regular. It has two forms: the -ra form (cosiera, cosieras, etc.) and the -se form (cosiese, cosieses, etc.). The -ra form is more common.
Example Sentences
Si yo cosiera más rápido, terminaría a tiempo.
If I sewed faster, I would finish on time.
yo
Me gustaría que tú cosieras la cortina.
I would like you to sew the curtain.
tú
Ojalá él cosiera mejor.
I wish he sewed better.
él/ella/usted
Si ustedes cosieran esto, nos ayudarían mucho.
If you all sewed this, you would help us a lot.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using the preterite instead of the imperfect subjunctive.
Correct: For hypotheticals like 'If I sewed...', use 'Si yo cosiera...', not 'Si yo cosí...'.
Why: The preterite describes completed past actions, while the imperfect subjunctive is for unreal or hypothetical past conditions.
Mistake: Confusing -ra and -se endings.
Correct: Both 'cosiera' and 'cosiese' are correct for 'yo', but 'cosiera' is more common.
Why: Learners might only know one form or mix them 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.
Imperfect
yo: cosía
Imperfect of 'coser': cosía, cosías, cosía, cosíamos, cosíais, cosían, for ongoing or habitual past actions.
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.
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).