In o > ue stem changing verbs, the 'o' in the stem changes to 'ue' in all conjugations except nosotros and vosotros.
| Tense | Yo | Tú | Él /<br>Ella /<br>Usted | Nosotros /<br>Nosotras | Vosotros /<br>Vosotras | Ellos /<br>Ellas /<br>Ustedes |
|---|---|---|---|---|---|---|
| Present | duerm- | duerm- | duerm- | dorm- | dorm- | duerm- |