Irregular IR Verbs (3/6)
Spanish: Edexcel IGCSE, topic 8.2.15
Radical Changing Stems (I → Y)
Most IR verbs that end in 'uir' change their stem in the 'él/ella' and 'ellos/ellas' forms of the preterite tense. In certain forms, these verbs drop the 'i' and use 'y' instead, to maintain pronunciation.
Contribuir - to contribute
- Contribuí - I contributed.
- Contribuiste - you contributed.
- Contribuyó - he/she contributed / you contributed (formal)
- Contribuimos - we contributed.
- Contribuisteis - you contributed (formal).
- Contribuyeron - they contributed / you contributed (formal plural)
Oír - to hear
- Oí - I heard.
- Oíste - you heard.
- Oyó - he/she heard / you heard (formal).
- Oímos - we heard.
- Oísteis - you heard (plural).
- Oyeron - they heard / you heard (formal plural).
Test yourself on Irregular IR Verbs (3/6)
How do you say 'they heard' in Spanish?