Introduction

The verb dormir means to sleep in English. It is an important verb often used in everyday conversations related to rest, sleep habits, and routines. This verb is irregular in its conjugation, especially in the present tense and other present-related forms.

Present Tense Conjugation

In the present tense, dormir is a stem-changing verb where the "o" changes to "ue" in all forms except the nosotros and vosotros forms. This change affects the pronunciation and spelling.
Spanish PronounSpanish ConjugationEnglish ConjugationSpanish ExampleEnglish Example
yoduermoI sleepYo duermo ocho horas.I sleep eight hours.
duermesyou (informal) sleepTú duermes muy temprano.You sleep very early.
él/ella/ustedduermehe/she/you sleepElla duerme en su cuarto.She sleeps in her room.
nosotros/asdormimoswe sleepNosotros dormimos poco.We sleep little.
vosotros/asdormísyou all sleepVosotros dormís en casa.You all sleep at home.
ellos/ellas/ustedesduermenthey/you all sleepEllos duermen tarde.They sleep late.

Preterite Tense Conjugation

In the preterite tense, dormir has a stem change only in the third person singular and plural forms where "o" changes to "u".
Spanish PronounSpanish ConjugationEnglish ConjugationSpanish ExampleEnglish Example
yodormíI sleptYo dormí bien anoche.I slept well last night.
dormisteyou (informal) sleptTú dormiste mucho ayer.You slept a lot yesterday.
él/ella/usteddurmióhe/she/you sleptÉl durmió en la oficina.He slept at the office.
nosotros/asdormimoswe sleptNosotros dormimos temprano.We slept early.
vosotros/asdormisteisyou all sleptVosotros dormisteis en el hotel.You all slept in the hotel.
ellos/ellas/ustedesdurmieronthey/you all sleptEllos durmieron en la playa.They slept on the beach.

Usage Notes

Dormir is commonly used with time expressions (e.g., mucho, poco, bien, mal), and also appears in idiomatic expressions related to sleep and rest. It may also combine with reflexive pronouns in certain contexts but primarily is used as a regular verb regarding sleeping actions.

Related Vocabulary

  • el sueño – sleep or dream
  • la cama – bed
  • descansar – to rest
  • soñar (ue) – to dream
Using these related words can help build your vocabulary around the theme of sleep.

Summary

Dormir is essential for expressing the action of sleeping, with irregular stem changes in both present and preterite tenses. Practice its forms to communicate effectively about sleeping habits and routines.
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