Irregular IR Verbs 3
Spanish: Edexcel IGCSE, topic 8.1.11
First Person Stem Changing IR Verbs
When some IR verbs are conjugated in the present tense, the stem of the first person 'yo' form changes. Derivatives of these verbs follow the same pattern.

Conducir - to drive
- Conduzco - I drive.
- Conduces - you drive.
- Conduce - he/she drives / you drive (formal).
- Conducimos - we drive.
- Conducís - you drive (plural).
- Conducen - they drive / you drive (formal plural).

Salir - to go out
- Salgo - I go out.
- Sales - you go out.
- Sale - he/she goes out / you go out (formal).
- Salimos - we go out.
- Salís - you go out (plural).
- Salen - they go out / you go out (formal plural).

Traducir - to translate
- Traduzco - I translate.
- Traduces - you translate.
- Traduce - he/she translates / you translate (formal).
- Traducimos - we translate.
- Traducís - you translate (plural).
- Traducen - they translate / you translate (formal plural).
Adding an Accent
When conjugated in the present tense, some IR verbs gain an accent. Note that this does NOT happen in the 'nosotros' and 'vosotros' forms. Derivatives of these verbs follow the same pattern.

Prohibir - to forbid
- Prohíbo - I forbid.
- Prohíbes - you forbid.
- Prohíbe - he/she forbids / you forbid (formal).
- Prohibimos - we forbid.
- Prohibís - you forbid (plural).
- Prohíben - they forbid / you forbid (formal plural).
Test yourself on Irregular IR Verbs 3
How do you say 'I leave' in Spanish?
¿Qué significa 'prohíben' en Inglés?
How do you say 'you forbid' (plural) in Spanish?