Several verbs, which happen to be quite commonly used, like
dar, estar, haber, ir, saber, ser, and ver, are irregular in the present
subjunctive. Other verbs, which appear to be irregular in fact
simply add regular subjunctive endings to the irregular present
indicative stem. An example of this would be tener, whose
present subjunctive forms, based on tengo, are tenga,
tengas, tenga, etc. The following is a complete list of the
truly irregular verbs in the present subjunctive:
dar
- dé
- des
- dé
- demos
- deis
- den
- esté
- estés
- esté
- estemos
- estéis
- estén
- haya
- haya
- hayas
- hayamos
- hayáis
- hayan
- vaya
- vayas
- vaya
- vayamos
- vayáis
- vayan
- sepa
- sepas
- sepa
- sepamos
- sepáis
- sepan
- sea
- seas
- sea
- seamos
- seáis
- sean
- vea
- veas
- vea
- veamos
- veáis
- vean
Irregular verbs in the
present
Irregular verbs in the
imperfect
Irregular verbs in the
preterite
Irregular verbs in the future and
conditional
Verbs