interponer Imperfect Conjugation
interponer — to file
The imperfect of interponer is completely regular: interponía, interponías, etc.
interponer Imperfect Forms
When to Use the Imperfect
Use this for ongoing past actions, habitual filings in the past, or to set the scene before another action occurred.
Notes on interponer in the Imperfect
This tense is fully regular for interponer. There are no stem changes or irregular endings.
Example Sentences
Antes, la empresa interponía muchas demandas.
Before, the company used to file many lawsuits.
él/ella/usted
Mientras interponíamos el recurso, recibimos una llamada.
While we were filing the appeal, we received a call.
nosotros
Tú siempre interponías excusas para no trabajar.
You were always putting forward excuses for not working.
tú
Common Mistakes
Mistake: Forgetting the accent on the 'í'.
Correct: interponía
Why: All -er and -ir verbs in the imperfect indicative require an accent on the 'i' for all persons.
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Related Tenses
Present
yo: interpongo
The present is regular except for the 'yo' form, which adds a 'g' (interpongo).
Preterite
yo: interpuse
Interponer is highly irregular in the preterite, using the stem 'interpusi-' with special endings.
Future
yo: interpondré
The future tense uses the irregular stem 'interpondr-' followed by standard future endings.
Conditional
yo: interpondría
The conditional uses the irregular stem 'interpondr-' (the same as the future).
Present Subjunctive
yo: interponga
The present subjunctive of interponer follows the 'yo' form (interpongo), resulting in interpong- endings.
Imperfect Subjunctive
yo: interpusiera
The imperfect subjunctive uses the irregular 'interpusi-' stem derived from the preterite.
Affirmative Imperative
yo: interpón
The imperative uses 'interpón' for tú and 'interponga' for formal commands.
Negative Imperative
yo: no interpongas
The negative imperative uses 'no' plus the present subjunctive forms (interpongas).