# Six truly irregular subjunctives: sea, esté, vaya, haya, sepa, dé

> id: conjugation.subjunctive.present-irregular · category: conjugation · depth: standard · levels: B1 · review: internally_reviewed

**Summary.** Only six verbs escape the yo-form recipe: ser → sea, estar → esté, ir → vaya, haber → haya, saber → sepa, dar → dé.

Because their yo forms don't end in -o (soy, estoy, voy, he, sé, doy), six verbs need their own subjunctive stems: sea, esté, vaya, haya, sepa, dé — then regular endings: seamos, vayan, sepáis.

Estar carries written accents on the stressed forms (esté, estés, estén) and dé takes one to distinguish it from the preposition de.

Everything else — including tener, venir, decir, conocer, the entire -go and -zco families — is covered by the yo-form recipe and is not, strictly speaking, irregular in the subjunctive.

## Examples
- Espero que sea fácil. — I hope it's easy.
- No creo que vayan a venir. — I don't think they're going to come.
- Cuando estés listo, avísame. — When you're ready, let me know.

Related: conjugation.subjunctive.present-regular, conjugation.present.irregular-ser, conjugation.imperative.usted-ustedes

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