serConjugation
ser means to be.
Complete Conjugation Tables
Reference all tenses and moods
Subjunctive
Imperfect Subjunctive
The imperfect subjunctive of ser uses the 'fuer-' stem: fuera, fueras, fuera, fuéramos, fuerais, fueran.
Present Subjunctive
The present subjunctive of ser is irregular: sea, seas, sea, seamos, seáis, sean.
Imperative
Negative Imperative
The negative imperative of ser uses 'no' + present subjunctive: no seas, no sea, no seamos, no seáis, no sean.
Imperative
The affirmative imperative of ser is used for commands: sé, sea, seamos, sed, sean.
Indicative
Conditional
The conditional of ser is regular: sería, serías, sería, seríamos, seríais, serían.
Preterite
The preterite of ser shares the exact same forms as the verb 'ir' (to go): fui, fuiste, fue, fuimos, fuisteis, fueron.
Imperfect
The imperfect of ser is one of only three irregular verbs in this tense: era, eras, era, éramos, erais, eran.
Present
The present of ser is highly irregular and essential: soy, eres, es, somos, sois, son.
Future
The future of ser is regular: seré, serás, será, seremos, seréis, serán.
Practice Conjugations
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Frequently Asked Questions
What does ser mean in Spanish?
ser means "to be".
Is ser a regular or irregular verb?
ser is a irregular -er verb in Spanish.
How do you conjugate ser in the present tense?
The present tense of ser is: yo soy, tú eres, él/ella/usted es, nosotros somos, vosotros sois, ellos/ellas/ustedes son.
How do you conjugate ser in the preterite (past tense)?
The preterite of ser is: yo fui, tú fuiste, él/ella/usted fue, nosotros fuimos, vosotros fuisteis, ellos/ellas/ustedes fueron.
ser conjugation cheat sheet
