Stem Changing ER Verbs (o - e)
Spanish: AQA GCSE (2025 Exam), topic 3.4.2
Stem Changing ER Verbs (O → UE)
In Spanish, some ER verbs change when conjugated in the present tense, with the 'o' in the infinitive becoming 'ue'. This does NOT happen in the 'vosotros' and 'nosotros' forms.

O → UE
- These ER verbs change from an O in the infinitive to UE in the present tense.
- E.g. Soler (to be accustomed to) → suelo (I am accustomed to).

Doler - to hurt
- Duelo - I hurt.
- Dueles you hurt.
- Duele - he/she/it hurts.
- Dolemos - we hurt.
- Doléis - you hurt.
- Duelen - they hurt.

Llover - to rain
- Llueve - it rains.
- This verb is only used in the 3rd person singular form.

Volver - to return
- Vuelvo - I return.
- Vuelves - you return.
- Vuelve - he/she returns.
- Volvemos - we return.
- Volvéis - you return.
- Vuelven - they return.

Poder - to be able to
- Puedo - I am able to.
- Puedes - you are able to.
- Puede - he/she is able to.
- Podemos - we are able to.
- Podéis - you are able to.
- Pueden - they are able to.
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