Accidental se: se me olvidó

B2

Grammar path · Lesson 76 of 86 · Stage B2 · Advanced sentences

When you accidentally forget, drop, break or lose something, Spanish speakers often avoid saying 'I forgot' and instead say 'it got forgotten on me', which sounds softer and less like a confession. The pattern is se + me/te/le/nos/les + verb, and the verb agrees with the thing, not the person: se me olvidó la llave, but se me olvidaron las llaves. The person affected appears as an indirect object pronoun me, te, le..., optionally clarified with a + person. Do not confuse it with impersonal se as in se habla español: that one has no me/te/le in the middle and refers to people in general.

Practise this lesson · 10 sentences

Form

Affirmativese + me/te/le/nos/les + verbo (3.ª persona) + cosa
Se me olvidaron las llaves.I forgot the keys.
Negativeno + se + me/te/le/nos/les + verbo + cosa
Esta vez no se me olvidó el paraguas.This time I didn't forget the umbrella.
Question¿se + me/te/le/nos/les + verbo + cosa?
¿Se te perdió el celular?Did you lose your cell phone?
With the person nameda + persona + se + le/les + verbo + cosa
A Juan se le cayó el vaso.Juan dropped the glass.

When to use it

Forgetting something

Used with olvidar to say you forgot something, presenting it as a slip rather than a choice. It can be followed by a noun or an infinitive.

Perdón, se me olvidó tu cumpleaños.Sorry, I forgot your birthday.
Se les olvidó traer los documentos.They forgot to bring the documents.

Dropping or breaking things

Used with caer, romper or quebrar to report small accidents with objects. The verb agrees with the object that fell or broke.

Se me cayó el teléfono al agua.I dropped my phone in the water.
Ayer se nos rompió la lavadora.Our washing machine broke yesterday.

Losing or running out of something

Used with perder, acabar or terminar when something goes missing or runs out without anyone intending it. Very common in everyday life.

A mi hermana se le perdieron las llaves.My sister lost her keys.
Se nos acabó la leche.We ran out of milk.

Se + indirect pronoun (the person affected) + verb

to mese me olvidó · se me cayeron las llaves
to you (tú)se te rompió el vaso
to him / her / you (usted)se le perdió el móvil
to usse nos acabó la leche
to themse les olvidaron los billetes

Signal words

sin quererpor accidente

Don't confuse it with

Impersonal se: se habla español

If an indirect pronoun me/te/le/nos/les sits between se and the verb, naming who the mishap happened to, it is accidental se: se me cayó el vaso. If there is no such pronoun and the sentence is about people in general, it is impersonal se: se vive bien aquí.

Frequently asked questions

Why is it se me olvidaron and not se me olvidó?

The verb agrees with the thing forgotten, not with the person. Las llaves is plural, so you use olvidaron; with la llave you use olvidó.

What is the difference between olvidé and se me olvidó?

Both are correct, but se me olvidó stresses that it was unintentional and sounds softer. In everyday Latin American speech, se me olvidó is more common.

Is the correct order se me or me se?

Se always comes first: se me, se te, se le. Me se is incorrect, even if you sometimes hear it in casual speech.

When do I need to add a + person like a Juan?

When you use le or les and it is not clear who is meant, add a + person: A Juan se le cayó el vaso. With me and te it is usually unnecessary.

Which verbs are common with accidental se?

The most common are olvidar, caer, romper, perder, acabar and quedar, as in se me quedó el libro en casa.

More in Verb phrases (perífrasis)

Ir a + infinitive (near future)A1Tener que and hay queA1Estar + gerund (present progressive)A2Acabar de, volver a, solerA2Impersonal se: se habla españolB1Passive se: se venden casasB1Llevar and seguir + gerundB1Empezar a, dejar de, ponerse aB1Passive voice with serB2Verbs of change: ponerse, volverse, hacerse, quedarseB2Advanced verb phrases: venir a, andar + gerund, llegar aC1
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