The Imperfect Subjunctive in Spanish | SpanishDict
www.spanishdict.com › guide › spanish-imperfectImperfect Subjunctive Forms Finding the Imperfect Subjunctive Stem. To conjugate a verb in the imperfect subjunctive, you'll need to know the third person plural (ellos, ellas) preterite form of the verb you're using. Why? Instead of using the infinitive for a stem, the imperfect subjunctive uses the third person plural of the preterite (minus the -ron). Whatever the third person preterite from of a verb is, whether regular or irregular, becomes the base for the imperfect subjunctive stem.