The conjugation of dormir in the present tense is: Yo duermo (I sleep), tú duermes (you sleep), él/ella, usted duerme (he/she sleeps, you sleep), nosotros dormimos (we sleep), vosotros dormís (you sleep) and ellos/ellas/ustedes duermen (they/you sleep). Dormir is an irregular IR verb. More @Wikipedia
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