B2 · Upper intermediate

The many uses of 'se'

Reflexive, reciprocal, se replacing le/les, impersonal se, the involuntary se and the emphatic se.

Reflexive and reciprocal se

Reflexive se: the subject performs the action on itself (myself, yourself, themselves...).

Reciprocal se: two or more subjects perform the action on each other — only possible in the plural.

Examples

Me lavo las manos antes de comer.I wash my hands before eating.
Se levanta muy temprano todos los días.He gets up very early every day.
Se quieren mucho desde hace años.They have loved each other for years. (reciprocal)
Nos escribimos cada semana.We write to each other every week. (reciprocal)

Se replacing le/les

When an indirect object pronoun (le/les) occurs together with a direct object pronoun starting with l- (lo, la, los, las), le/les obligatorily changes to se. This is purely phonetic — there is no reflexive meaning.

Examples

Le di el libro a María. → Se lo di.I gave María the book. → I gave it to her.
Les expliqué la regla a mis alumnos. → Se la expliqué.I explained the rule to my students. → I explained it to them.

Impersonal se and pasiva refleja

Impersonal se is used with intransitive verbs (no direct object) to say something general about 'people in general'. The verb is always singular.

The pasiva refleja (see also the lesson on the passive voice) uses se with a transitive verb + direct object, which becomes the grammatical subject here — the verb then agrees in number with that subject.

Examples

Se vive bien en este pueblo.Life is good in this town. (impersonal, singular)
En España se cena tarde.In Spain people have dinner late. (impersonal)
Se venden pisos en esta calle.Apartments are sold on this street. (pasiva refleja, plural)

The involuntary se (se me cayó)

This construction expresses that something happens by accident or unintentionally: se + indirect object pronoun (me, te, le, nos, os, les) + verb. The verb agrees with the subject of the event (the thing that falls, breaks, is forgotten...), not with the person.

This form 'removes' direct responsibility from the person — compare 'I dropped the glass' versus 'the glass slipped from my hands'.

Examples

Se me cayó el vaso y se rompió.I dropped the glass and it broke.
Se le olvidaron las llaves en casa.He/she forgot the keys at home.
Se nos acabó el café esta mañana.We ran out of coffee this morning.
Se te ha roto la pantalla del móvil.Your phone screen has cracked.

The emphatic se (se enfático)

With some verbs of consumption or completion (comer, beber, leer...), a se can be added that doesn't really change the meaning, but emphasizes completeness or personal involvement.

This se is grammatically optional, but is very commonly used in spoken Spanish.

Examples

Se comió todo el pastel él solo.He ate the whole cake all by himself.
Se bebió la botella entera de un trago.He drank the whole bottle in one gulp.
Me leí el libro en dos días.I read the whole book in two days.

💡 Tips

💡
Le/les + lo/la/los/las doesn't exist in Spanish — it always becomes se + lo/la/los/las.
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Impersonal se → verb always singular; pasiva refleja → verb agrees with the (plural) subject.
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With the involuntary se, the verb agrees with the 'thing' that happens (el vaso se ROMPIÓ), not with the person it happens to.

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