Irregular IR Verbs (2/6)
Spanish: Edexcel IGCSE, topic 8.2.14
Radical Changing Stems (O → U)
In the preterite tense, some verbs change their stems in the 'él/ella' and 'ellos/ellas' forms, with the 'o' changing to a 'u'. The two verbs that follow this pattern are 'morir' and 'dormir'.

Morir - to die
- Morí - I died.
- Moriste - you died.
- Murió - he/she died.
- Morimos - we died.
- Moristeis - you died.
- Murieron - they died.

Dormir - to sleep
- Dormí - I slept.
- Dormiste - you slept.
- Durmió - he/she slept.
- Dormimos - we slept.
- Dormisteis - you slept.
- Durmieron - they slept.
Test yourself on Irregular IR Verbs (2/6)
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