oponer Imperfect Subjunctive Conjugation
oponer — to put up
The imperfect subjunctive uses the 'opusie-' stem: opusiera, opusieras, opusiera.
oponer Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this for hypothetical 'if' situations or after past-tense triggers of doubt or desire (e.g., 'I was afraid they would oppose').
Notes on oponer in the Imperfect Subjunctive
This tense is derived from the 3rd person plural preterite ('opusieron'). Drop the '-ron' and add -ra, -ras, -ra, etc.
Example Sentences
Si él se opusiera, no podríamos hacerlo.
If he were to oppose it, we wouldn't be able to do it.
él/ella/usted
Me sorprendió que no se opusieran.
It surprised me that they didn't oppose.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using 'oponiera'.
Correct: The correct form is 'opusiera'.
Why: The imperfect subjunctive always follows the irregular stem of the preterite.
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Related Tenses
Present
yo: opongo
The present tense of oponer is irregular in the 'yo' form (opongo), but regular like 'comer' for the rest.
Preterite
yo: opuse
The preterite of oponer is highly irregular, using the 'pus-' stem: opuse, opusiste, opuso, etc.
Imperfect
yo: oponía
The imperfect of oponer is completely regular: oponía, oponías, oponía, oponíamos, oponíais, oponían.
Future
yo: opondré
The future of oponer uses the irregular stem 'opondr-': opondré, opondrás, opondrá.
Conditional
yo: opondría
The conditional of oponer uses the 'opondr-' stem: opondría, opondrías, opondría.
Present Subjunctive
yo: oponga
The present subjunctive uses the 'opong-' stem: oponga, opongas, oponga, etc.
Affirmative Imperative
yo: opón
The imperative has a short 'tú' form (opón) and 'g' forms for others: opón, oponga, opongamos.
Negative Imperative
yo: no opongas
The negative imperative uses 'no' plus the present subjunctive: no opongas, no oponga.