ser Imperfect Subjunctive Conjugation
ser — to be
The imperfect subjunctive of ser uses the 'fuer-' stem: fuera, fueras, fuera, fuéramos, fuerais, fueran.
ser Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this in 'If' clauses (If I were...) or after past-tense verbs of emotion or desire.
Notes on ser in the Imperfect Subjunctive
This tense is based on the preterite 'ellos' form (fueron). Like the preterite, it is identical to the verb 'ir'.
Example Sentences
Si fuera rico, viajaría mucho.
If I were rich, I would travel a lot.
yo
Quería que fueras a la fiesta.
I wanted you to be at the party.
tú
Si fuéramos valientes, lo haríamos.
If we were brave, we would do it.
nosotros
Common Mistakes
Mistake: Forgetting the accent on 'fuéramos'.
Correct: Always include the accent on the first 'e' in the nosotros form.
Why: All nosotros forms in the imperfect subjunctive require an accent to maintain the stress pattern.
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Related Tenses
Present
yo: soy
The present of ser is highly irregular and essential: soy, eres, es, somos, sois, son.
Preterite
yo: fui
The preterite of ser shares the exact same forms as the verb 'ir' (to go): fui, fuiste, fue, fuimos, fuisteis, fueron.
Imperfect
yo: era
The imperfect of ser is one of only three irregular verbs in this tense: era, eras, era, éramos, erais, eran.
Future
yo: seré
The future of ser is regular: seré, serás, será, seremos, seréis, serán.
Conditional
yo: sería
The conditional of ser is regular: sería, serías, sería, seríamos, seríais, serían.
Present Subjunctive
yo: sea
The present subjunctive of ser is irregular: sea, seas, sea, seamos, seáis, sean.
Affirmative Imperative
yo: sé
The affirmative imperative of ser is used for commands: sé, sea, seamos, sed, sean.
Negative Imperative
yo: no seas
The negative imperative of ser uses 'no' + present subjunctive: no seas, no sea, no seamos, no seáis, no sean.