Stem change o → ue (poder, volver, dormir)

Erklärung

Same boot logic as e → ie, applied to o: when the stem syllable is stressed, o opens into ue. Poder → puedo; volver → vuelvo; dormir → duermo; contar → cuento.

Nosotros and vosotros keep the plain o (podemos, volvéis), and so does vos (vos podés, vos dormís), because their endings carry the stress.

For -ir verbs of this family (dormir, morir), the o also raises to u in the preterite third person (durmió, murieron) and the gerund (durmiendo) — covered by the third-person stem change rule.

Beispiele

Voraussetzungen

• Präsens: regelmäßige Verben auf -ar

Verwandte Regeln

• Stem change e → ie (pensar, querer, sentir)
• Stem change u → ue: jugar
• Third-person stem change: durmió, pidió, sintió