At the A1 level, 'olvidar' is introduced as a simple regular verb meaning 'to forget.' Students learn to use it in the present tense to talk about daily life. The focus is on basic sentences like 'Yo olvido mi libro' or 'Él olvida la tarea.' At this stage, the goal is simply to recognize the word and understand that it describes a failure of memory. Learners are encouraged to use it with direct objects. The concept of 'forgetting' is linked to common classroom and home vocabulary, such as forgetting pens, books, or names. It is important for A1 students to memorize the conjugation: olvido, olvidas, olvida, olvidamos, olvidáis, olvidan. They also learn the basic imperative '¡Olvídalo!' as a set phrase meaning 'Forget it!' or 'Never mind!' without necessarily understanding the underlying grammar of the pronoun.
At the A2 level, learners begin to use 'olvidar' in the past tenses, particularly the Preterite and Imperfect. This allows them to tell stories about things they forgot in the past. 'Olvidé mi pasaporte ayer' (I forgot my passport yesterday) or 'Siempre olvidaba mis llaves cuando era niño' (I always used to forget my keys when I was a child). Learners are also introduced to the pronominal form 'olvidarse de.' They learn that when they use 'me/te/se,' they must add the preposition 'de.' This is a critical step toward sounding more natural. A2 students practice sentences like 'Me olvidé de comprar leche.' They also start to recognize 'olvidar' in compound tenses like the Present Perfect: 'He olvidado tu nombre' (I have forgotten your name).
The B1 level introduces the 'accidental se' construction, which is a significant hurdle for many learners. Instead of saying 'Yo olvidé las llaves,' students learn to say 'Se me olvidaron las llaves.' This structure involves using 'se' + an indirect object pronoun + the verb conjugated to match the object forgotten. This construction is vital for B1 students because it is the most common way native speakers express accidental forgetting. B1 learners also explore the use of 'olvidar' in the Subjunctive mood, often following expressions of emotion or desire: 'Espero que no te olvides de mí' (I hope you don't forget me). They also learn to use 'olvidar' with infinitives to describe forgetting to perform an action: 'Se me olvidó llamarte.'
At the B2 level, students move beyond physical objects and daily tasks to use 'olvidar' in more abstract and figurative ways. They discuss 'olvidar el pasado' (forgetting the past), 'olvidar los rencores' (forgetting grudges), or 'olvidar las raíces' (forgetting one's roots). The verb is used to discuss social issues, historical memory, and psychological states. B2 learners should be comfortable switching between all three structures (transitive, pronominal, and accidental) depending on the desired emphasis and formality. They also learn more complex idiomatic expressions and the noun form 'el olvido.' For example, 'caer en el olvido' (to fall into oblivion). They start to notice how 'olvidar' is used in literature and news media to discuss collective memory and national identity.
C1 learners explore the subtle stylistic choices between 'olvidar,' 'olvidarse de,' and 'olvidársele.' They analyze how these choices reflect the speaker's attitude toward the event—whether they are taking responsibility, blaming fate, or being poetic. At this level, students use 'olvidar' in advanced grammatical structures, such as 'si' clauses with the Past Subjunctive: 'Si no hubiera olvidado el mapa, no estaríamos perdidos' (If I hadn't forgotten the map, we wouldn't be lost). They also study the use of 'olvidar' in formal academic writing and legal contexts, where it might mean 'to fail to provide' or 'to omit.' They are expected to understand the nuances of synonyms like 'descuidar,' 'omitir,' and 'pretermir' and know when 'olvidar' is no longer the best word choice.
At the C2 level, 'olvidar' is mastered in all its philosophical and literary depth. Learners can discuss the concept of 'el olvido' as a metaphysical state, referencing famous Spanish-language authors like Borges or Neruda. They understand archaic or highly formal uses and can use the verb in complex rhetorical structures. A C2 speaker might use 'olvidar' to discuss the intentional suppression of memory in a political context (damnatio memoriae) or the cognitive decline associated with aging. They are fully aware of the regional variations in the usage of 'olvidar' vs. 'olvidarse' across the Spanish-speaking world. They can manipulate the verb to create specific emotional effects in creative writing or persuasive speaking, choosing the 'accidental se' to deflect blame with perfect social timing.

olvidar in 30 Seconds

  • The primary verb for 'to forget' in Spanish, essential for daily communication.
  • Features three main grammatical structures: transitive, pronominal, and accidental.
  • Regular -ar conjugation makes it easy to learn for beginners.
  • Culturally significant in music and literature, representing both loss and forgiveness.

The Spanish verb olvidar is a foundational pillar of the language, primarily used to describe the act of failing to remember something or leaving something behind. At its most basic level, it corresponds directly to the English verb 'to forget.' However, as one progresses in Spanish, the nuances of olvidar reveal a complex relationship between the speaker and the forgotten object. In Spanish, memory is often treated not just as a mental action, but as a state of being or even an accidental occurrence. You will hear this word in every possible context: from a student forgetting their homework to a lover trying to forget a past relationship, or a traveler forgetting their passport at the hotel. It is a regular -ar verb in its simple form, making it one of the first verbs beginners learn to conjugate. Yet, its simplicity is deceptive because native speakers frequently prefer the pronominal form olvidarse or the 'accidental se' construction, which shifts the blame away from the person and onto the situation itself.

Direct Action (Olvidar)
This is the transitive use where the subject actively forgets an object. It is common in formal writing or when emphasizing the person's role in the forgetting. Example: 'Yo olvidé mi libro' (I forgot my book).
Pronominal Usage (Olvidarse de)
By adding the reflexive pronoun and the preposition 'de', the focus shifts slightly. It is extremely common in spoken Spanish. Example: 'Me olvidé de la cita' (I forgot about the appointment).
Accidental Construction (Olvidársele)
The most 'Spanish' way to express forgetting. It implies the thing 'forgot itself to you,' removing personal culpability. Example: 'Se me olvidaron las llaves' (The keys were forgotten to me/I forgot the keys accidentally).

Nunca voy a olvidar el día que nos conocimos en Madrid.

Translation: I am never going to forget the day we met in Madrid.

Understanding when to use which form is key to sounding natural. If you use the simple 'olvidar' for a physical object like keys, you might sound a bit robotic or overly formal. If you use 'olvidarse de' or the 'accidental se,' you immediately sound more like a native. This verb also carries emotional weight. It is the central theme of countless boleros and pop songs where singers plead for their lovers not to forget them or lament their own inability to forget a heartbreak. In a cultural sense, 'olvidar' is tied to the concept of 'el olvido' (oblivion or forgetfulness), which is a powerful motif in Spanish and Latin American literature, most notably in the works of Gabriel García Márquez or Jorge Luis Borges.

Es importante no olvidar nuestras raíces culturales.

Beyond simple memory, olvidar can mean to neglect or to leave behind. For instance, if a government 'olvida' a certain region, it means they are failing to provide services or attention. In social settings, 'olvidar un agravio' means to forgive and move past a slight. It is a versatile verb that bridges the gap between the cognitive function of the brain and the social functions of forgiveness and neglect. As you practice, try to identify whether the forgetting was a choice, a mistake, or a natural fading of memory over time.

Common Contexts
Academic (forgetting a lesson), Social (forgetting a name), Domestic (forgetting groceries), and Emotional (forgetting an ex-partner).

¿Cómo pudiste olvidar cerrar la puerta con llave?

He olvidado por completo lo que me dijiste ayer.

No te olvides de comprar pan de camino a casa.

Using olvidar correctly requires a grasp of three distinct grammatical structures. While they all translate to 'to forget,' they are used in different social and linguistic situations. Mastering these will significantly improve your fluency and make your Spanish sound much more authentic. Let's break down these structures with detailed examples and explanations of their nuances.

Structure 1: Olvidar + Direct Object
This is the simplest form. It follows the pattern [Subject] + [Conjugated Olvidar] + [Noun]. It is direct and often implies a more permanent or significant forgetting. Example: 'Ella olvidó su pasado' (She forgot her past). In this case, the subject is the active agent of the forgetting.
Structure 2: Olvidarse + de + Object
This pronominal form is the standard for everyday conversation. The pattern is [Subject] + [Reflexive Pronoun] + [Conjugated Olvidar] + 'de' + [Noun/Infinitive]. Example: 'Me olvidé de traer el vino' (I forgot to bring the wine). The 'de' is mandatory here; omitting it is a common mistake for learners.
Structure 3: Se + [Indirect Object Pronoun] + Olvidar + [Subject]
This is the 'accidental se' construction. The thing forgotten becomes the grammatical subject, and the person who forgot it becomes the indirect object. Pattern: 'Se' + [me/te/le/nos/os/les] + [olvidó/olvidaron] + [Noun]. Example: 'Se me olvidaron las llaves' (The keys forgot themselves to me). Use this to sound humble or to emphasize that the forgetting was unintentional.

¿Has olvidado ya nuestra promesa de viajar juntos?

Translation: Have you already forgotten our promise to travel together?

When using olvidar with verbs, you can use either 'olvidar' or 'olvidarse de' followed by an infinitive. For example, 'Olvidé llamar' and 'Me olvidé de llamar' both mean 'I forgot to call.' However, the second one is much more frequent in spoken Spanish across Latin America and Spain. If you are writing a formal essay, stick to the non-reflexive 'olvidar.' If you are chatting with friends at a café, 'olvidarse de' or 'se me olvidó' will serve you much better.

Se nos olvidó que hoy era día festivo y fuimos al banco.

In the imperative mood (giving commands), olvidar is often used to tell someone to move on from a negative experience. '¡Olvídalo!' is a very common way to say 'Forget it!' or 'Never mind!' when you don't want to explain something further or when you want someone to stop worrying about a small mistake you made. Conversely, 'No me olvides' (Don't forget me) is a classic romantic plea used in poetry and song lyrics.

Si quieres ser feliz, debes olvidar los rencores del pasado.

A veces es mejor olvidar que tener razón.

Se le olvidó apagar la luz antes de salir de la oficina.

The word olvidar is ubiquitous in Spanish-speaking cultures, echoing through kitchens, classrooms, and concert halls. Because forgetting is a universal human experience, the word finds its way into every level of discourse. In a typical Spanish household, you might hear a parent shouting, '¡No te olvides de sacar la basura!' (Don't forget to take out the trash!). In a professional setting, an assistant might apologize by saying, 'Se me olvidó adjuntar el archivo' (I forgot to attach the file). The frequency of this word is high because it covers both the trivial and the profound.

Music and Lyrics
Spanish music is obsessed with the tension between memory and forgetting. From the tango 'Olvido' to modern reggaeton tracks about 'olvidar a un ex,' the word is a staple of emotional expression. It often rhymes with 'amar' (to love) or 'llorar' (to cry), creating a thematic trinity in romantic songs.
Literature and Philosophy
In literary contexts, el olvido represents more than just a lack of memory; it is a force of nature. Gabriel García Márquez’s 'One Hundred Years of Solitude' features a 'forgetting sickness' (peste del olvido) that strikes the town of Macondo, illustrating the cultural fear of losing one's history and identity.

'El olvido es la única venganza y el único perdón.' — Jorge Luis Borges.

Translation: Oblivion is the only revenge and the only forgiveness.

In daily social life, 'olvidar' acts as a social lubricant. When someone apologizes for a mistake, the standard response is often 'Olvídalo' or 'No pasa nada, olvídalo.' This usage functions similarly to 'Don't worry about it' or 'Forget it' in English. It helps maintain harmony by signaling that the mistake will not be held against the person. Furthermore, in news and politics, you will often hear about 'la memoria histórica' (historical memory) versus 'el olvido,' referring to how societies deal with their difficult pasts, particularly in countries like Spain, Chile, or Argentina.

No podemos olvidar los sacrificios de nuestros abuelos.

In television dramas (telenovelas), 'olvidar' is a high-frequency word used during dramatic confrontations. Characters might scream '¡Olvídame!' (Forget me!) during a breakup or '¡Nunca te olvidaré!' (I will never forget you!) during a tragic goodbye. This emotional range makes 'olvidar' a powerful tool for learners to express not just facts, but deep feelings and social intentions. Whether you are reading a menu and realize you forgot your glasses or watching a classic film, olvidar will be there.

Espero que no se te haya olvidado nuestra cena de esta noche.

El tiempo ayuda a olvidar las penas del corazón.

Learning olvidar involves navigating several grammatical traps that even intermediate learners often fall into. The most frequent errors involve the confusion between the three main structures: the simple transitive, the pronominal, and the accidental. Because English uses 'to forget' for all these scenarios, English speakers tend to over-simplify their Spanish usage, leading to phrases that sound unnatural or are grammatically incorrect.

Mistake 1: Omitting 'de' with Olvidarse
The biggest mistake is saying 'Me olvidé mi paraguas' instead of 'Me olvidé DE mi paraguas.' If you use the reflexive pronoun 'me/te/se', you MUST include 'de' before the object. Incorrect: *Me olvidé la tarea. Correct: Me olvidé de la tarea.
Mistake 2: Incorrect Agreement in Accidental 'Se'
Learners often say 'Se me olvidó las llaves' because they think the verb should agree with 'me.' However, in this structure, 'las llaves' is the subject. Incorrect: *Se me olvidó las llaves. Correct: Se me olvidaron las llaves.
Mistake 3: Overusing the Simple Form
While 'Olvidé mis llaves' is grammatically correct, it sounds very stiff and 'bookish' in a casual conversation. Using it exclusively makes you sound like a textbook rather than a person. Try to incorporate 'Se me olvidó' for everyday mishaps.

Incorrect: *Yo olvidé de decírtelo. Correct: Olvidé decírtelo OR Me olvidé de decírtelo.

Explanation: You cannot mix the simple form with 'de'. It is either 'olvidar algo' or 'olvidarse de algo'.

Another common error is confusing olvidar with dejar (to leave). While 'forget' in English can mean 'I forgot my keys at home,' in Spanish, if you specify the location where you left them, you should use 'dejar.' For example, instead of 'Olvidé mis llaves en la mesa,' it is more natural to say 'Dejé mis llaves en la mesa.' Use olvidar when the focus is on the loss of memory, and dejar when the focus is on the physical location of the object.

Se te olvidó que teníamos una reunión a las tres.

Finally, be careful with the word olvido. As a noun, it means 'oblivion' or 'forgetfulness.' Sometimes learners try to use it as a verb. Remember that 'olvido' is also the first-person singular present tense ('Yo olvido'). Context is key to determining if it is being used as a noun or a verb. For example, 'Caer en el olvido' (To fall into oblivion) vs 'Yo nunca olvido una cara' (I never forget a face).

¿Se les olvidaron las maletas en el aeropuerto?

No olviden revisar sus respuestas antes de entregar el examen.

While olvidar is the primary verb for forgetting, Spanish offers several alternatives that can add precision or change the tone of your sentence. Depending on whether you are talking about leaving an object behind, neglecting a duty, or having a memory fade over time, you might choose a different word. Understanding these synonyms will help you describe the 'how' and 'why' of forgetting more effectively.

Dejar (To Leave/To Forget in a Place)
When you 'forget' an object in a specific location, Spanish speakers often use 'dejar.' Example: 'Dejé el paraguas en el autobús' (I left/forgot the umbrella on the bus). This implies the physical act of leaving it there.
Descuidar (To Neglect)
This verb is used when 'forgetting' means failing to take care of something. Example: 'Descuidó sus estudios' (He neglected/forgot about his studies). It implies a lack of attention rather than a simple memory slip.
Omitir (To Omit/Skip)
Used when someone 'forgets' to include something in a list, speech, or document. Example: 'Omitió mencionar los detalles importantes' (He forgot/omitted to mention the important details).
Pasar por alto (To Overlook)
A more idiomatic way to say someone 'forgot' to notice something or ignored it. Example: 'Pasaron por alto mi advertencia' (They overlooked/forgot my warning).

Es fácil olvidar los problemas cuando estás de vacaciones.

Comparison: Here, 'olvidar' is better than 'dejar' because you are talking about a mental state, not a physical object.

In a literary or highly formal context, you might encounter pretermir (to pass over) or ignorar (to ignore/be unaware of), though these are much less common as direct synonyms for 'to forget.' On the opposite end of the spectrum, the antonym of olvidar is recordar or acordarse de. Just like olvidar, recordar is simple transitive ('Recuerdo el día'), while acordarse requires 'de' ('Me acuerdo del día').

No descuides tus plantas mientras estoy fuera.

When comparing 'olvidar' to English synonyms, think of 'olvidar' as the umbrella term. 'To slip one's mind' is perfectly captured by 'se me olvidó.' 'To draw a blank' can be 'quedarse en blanco' or 'olvidársele a uno algo en el momento.' By learning these variations, you become a more expressive and precise speaker, capable of distinguishing between a genuine accident and a deliberate omission.

¿Cómo pudiste dejar al niño solo en el parque?

El autor omitió un capítulo entero en la versión final.

How Formal Is It?

Formal

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Neutral

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Informal

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Child friendly

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Slang

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Fun Fact

The word 'inolvidable' (unforgettable) uses the same root and is one of the most common adjectives in Spanish romantic poetry and music. The root is also related to the English word 'oblivion.'

Pronunciation Guide

UK /ol.βiˈðar/
US /ol.βiˈðar/
The stress is on the final syllable 'dar' because it ends in 'r'.
Rhymes With
amar cantar hablar llegar mirar pasar pensar recordar
Common Errors
  • Pronouncing the 'v' like a hard English 'v'. In Spanish, 'b' and 'v' are phonetically identical.
  • Putting the stress on the first or second syllable. It must be ol-vi-DAR.
  • Pronouncing the 'r' at the end too strongly like an American 'r'. It should be a soft tap.
  • Pronouncing the 'i' like the 'i' in 'sit'. It must be a sharp 'ee' sound.
  • Making the 'd' too hard like an English 'd'. It should sound more like 'th'.

Difficulty Rating

Reading 1/5

Very easy to recognize in text as it is a frequent word.

Writing 3/5

Difficult to master the 'accidental se' and the 'de' in 'olvidarse de'.

Speaking 3/5

Requires practice to use the correct pronouns and agreement in real-time.

Listening 2/5

Easy to hear, but the 'se me' can sometimes sound like one word.

What to Learn Next

Prerequisites

recordar memoria llave tarea libro

Learn Next

acordarse dejar perder quedarse traer

Advanced

relegar omitir pretermir evocar rememorar

Grammar to Know

The 'Accidental Se'

Se me olvidó el libro.

Pronominal Verbs with 'de'

Me olvidé de ti.

Transitive Verbs

Olvidé mi paraguas.

Negative Imperative with Pronouns

No lo olvides.

Subjunctive for Emotions/Wishes

Espero que no me olvides.

Examples by Level

1

Yo nunca olvido mi mochila.

I never forget my backpack.

Simple present tense, transitive use.

2

¿Olvidas algo hoy?

Are you forgetting something today?

Interrogative form, 2nd person singular.

3

Nosotros olvidamos los nombres de los nuevos estudiantes.

We forget the names of the new students.

1st person plural, present tense.

4

Ella olvida su teléfono en la mesa.

She forgets her phone on the table.

3rd person singular, present tense.

5

¡No olvides tu paraguas!

Don't forget your umbrella!

Negative imperative (informal tú).

6

Ustedes olvidan la tarea muy a menudo.

You all forget the homework very often.

2nd person plural (ustedes), present tense.

7

Él olvida comprar el pan.

He forgets to buy the bread.

Olvidar + infinitive.

8

Olvido siempre las llaves del coche.

I always forget the car keys.

Present tense, habitual action.

1

Ayer olvidé mi cartera en el restaurante.

Yesterday I forgot my wallet in the restaurant.

Preterite tense, completed action.

2

Me olvidé de llamarte anoche.

I forgot to call you last night.

Pronominal form 'olvidarse de'.

3

Siempre nos olvidábamos de cerrar la puerta.

We always used to forget to close the door.

Imperfect tense, habitual past action.

4

¿Te has olvidado de nuestra cita?

Have you forgotten about our appointment?

Present perfect tense.

5

Ellos se olvidaron de traer las bebidas.

They forgot to bring the drinks.

Preterite of 'olvidarse de'.

6

Ella olvidó que hoy era mi cumpleaños.

She forgot that today was my birthday.

Olvidar + 'que' clause.

7

No me olvidé de comprar el regalo.

I didn't forget to buy the gift.

Negative pronominal form.

8

Usted se olvidó de firmar el documento.

You (formal) forgot to sign the document.

Formal address, pronominal form.

1

Se me olvidaron las llaves dentro de la casa.

I forgot the keys inside the house (accidentally).

Accidental 'se' construction, plural agreement.

2

Espero que no se te olvide mi dirección.

I hope you don't forget my address.

Present subjunctive after 'espero que'.

3

Se le olvidó que tenía una reunión importante.

He forgot (accidentally) that he had an important meeting.

Accidental 'se' with a 'que' clause.

4

A menudo se nos olvida lo afortunados que somos.

We often forget how lucky we are.

Accidental 'se' in the present tense.

5

¿Se os olvidó apagar el horno?

Did you all (Spain) forget to turn off the oven?

Accidental 'se' with 'os' pronoun.

6

No quiero que olvides este momento.

I don't want you to forget this moment.

Present subjunctive after 'querer que'.

7

Se me ha olvidado el código de seguridad.

I have forgotten the security code.

Present perfect with accidental 'se'.

8

A María se le olvidó traer su pasaporte.

Maria forgot to bring her passport.

Accidental 'se' specifying the person (A María).

1

Es imposible olvidar los horrores de la guerra.

It is impossible to forget the horrors of war.

Infinitive as subject complement.

2

Muchos inmigrantes temen olvidar su lengua materna.

Many immigrants fear forgetting their mother tongue.

Infinitive after a verb of emotion (temer).

3

El gobierno ha olvidado a las comunidades rurales.

The government has neglected the rural communities.

Olvidar meaning 'to neglect'.

4

Si sigues así, pronto caerás en el olvido.

If you continue like this, you will soon fall into oblivion.

Noun 'olvido' in a common idiom.

5

No debemos olvidar que el cambio climático es real.

We must not forget that climate change is real.

Modal verb 'deber' + olvidar.

6

Se me olvidó por completo lo que iba a decir.

I completely forgot what I was going to say.

Accidental 'se' with intensifier 'por completo'.

7

Ella intenta olvidar su pasado doloroso.

She tries to forget her painful past.

Transitive use in an emotional context.

8

¡Olvídalo! No vale la pena discutir por eso.

Forget it! It's not worth arguing about that.

Imperative with direct object pronoun.

1

Resulta imperativo no olvidar las lecciones de la historia.

It is imperative not to forget the lessons of history.

Formal register, impersonal 'resulta'.

2

A veces, el cerebro olvida traumas para protegernos.

Sometimes, the brain forgets traumas to protect us.

Scientific/Psychological context.

3

Me preocupa que se nos esté olvidando la importancia del diálogo.

It worries me that we are forgetting the importance of dialogue.

Present progressive subjunctive with accidental 'se'.

4

Habiendo olvidado el mapa, tuvimos que guiarnos por las estrellas.

Having forgotten the map, we had to guide ourselves by the stars.

Perfect participle construction.

5

El autor olvida mencionar las fuentes secundarias en su tesis.

The author forgets to mention the secondary sources in his thesis.

Olvidar meaning 'to omit' in academic context.

6

No es que lo haya olvidado, es que no quiero recordarlo.

It's not that I have forgotten it, it's that I don't want to remember it.

Past subjunctive in a contrastive 'no es que' clause.

7

Sus promesas fueron rápidamente olvidadas por el pueblo.

His promises were quickly forgotten by the people.

Passive voice with 'ser' + past participle.

8

Se le olvidó mencionar un pequeño detalle en su declaración.

He forgot to mention a small detail in his statement.

Accidental 'se' in a formal/legal context.

1

La obra explora la dicotomía entre la memoria y el olvido absoluto.

The work explores the dichotomy between memory and absolute oblivion.

High-level literary analysis.

2

Por mucho que lo intente, no logra olvidar aquel agravio.

No matter how much he tries, he cannot forget that slight.

Concessive clause 'por mucho que'.

3

El paso del tiempo termina por olvidar hasta los nombres más ilustres.

The passage of time eventually forgets even the most illustrious names.

Personification of 'el paso del tiempo'.

4

No debemos permitir que la tragedia caiga en el pozo del olvido.

We must not allow the tragedy to fall into the pit of oblivion.

Metaphorical use of 'olvido'.

5

Se le olvidó por completo su deber para con la patria.

He completely forgot his duty toward the homeland.

Formal 'deber para con'.

6

Es una película que no se olvida fácilmente por su crudeza.

It is a movie that is not easily forgotten because of its rawness.

Passive 'se' construction.

7

Olvidar es una forma de morir un poco cada día.

Forgetting is a way of dying a little every day.

Philosophical infinitive as subject.

8

Su nombre se ha ido olvidando con el transcurrir de las décadas.

His name has been gradually forgotten as the decades passed.

Passive 'se' with 'ir' + gerund to show gradual process.

Common Collocations

olvidar por completo
olvidar fácilmente
intentar olvidar
olvidar las llaves
olvidar el pasado
olvidar una cita
olvidar un nombre
olvidar los detalles
olvidar la contraseña
olvidar un agravio

Common Phrases

¡Olvídalo!

— Used to tell someone to stop worrying about something or to drop a subject. Equivalent to 'Forget it!'

Si no quieres ir, ¡olvídalo!

Se me olvidó.

— The standard way to say 'I forgot' in a casual, accidental way. Very common.

Se me olvidó comprar la leche.

No te olvides de...

— A common way to remind someone to do something. Equivalent to 'Don't forget to...'

No te olvides de cerrar con llave.

Caer en el olvido.

— To be forgotten by people over time. Used for fame, laws, or traditions.

Esa vieja costumbre cayó en el olvido.

Echar al olvido.

— To intentionally decide to forget something, usually something negative. To cast into oblivion.

Decidió echar al olvido sus rencores.

Lo que se olvida, no se ha aprendido.

— A common educational proverb. What is forgotten was never truly learned.

Estudia bien, porque lo que se olvida, no se ha aprendido.

Vivir en el olvido.

— To live in a state of being ignored or forgotten by others. Often used for elderly or poor people.

Muchos ancianos viven en el olvido.

Olvidar las penas.

— To try to stop feeling sad or to distract oneself from suffering. Common in songs.

Bailamos para olvidar las penas.

Quedar en el olvido.

— Similar to 'caer en el olvido,' meaning something has been lost to time.

Sus hazañas quedaron en el olvido.

Para olvidar.

— Used to describe a very bad experience that one wishes to forget. 'A day to forget.'

Fue un partido para olvidar.

Often Confused With

olvidar vs dejar

Use 'dejar' when you specify where you left the object. Use 'olvidar' for the mental act.

olvidar vs perder

Use 'perder' when you don't know where the object is. Use 'olvidar' when you know you left it somewhere but didn't mean to.

olvidar vs omitir

Use 'omitir' in formal contexts for leaving out information on purpose or by accident in a list.

Idioms & Expressions

"Tener memoria de elefante"

— To have a great memory (the opposite of forgetting). Elephants are said never to forget.

Mi abuela tiene memoria de elefante; recuerda todo.

informal
"Tener memoria de pez"

— To have a very poor memory and forget things instantly. Like a goldfish.

Se me olvidó otra vez; tengo memoria de pez.

informal
"Hacer borrón y cuenta nueva"

— To forget past mistakes and start over with a clean slate. Literally: to make a smudge and start a new count.

Olvidemos la pelea y hagamos borrón y cuenta nueva.

neutral
"Pasar página"

— To move on from a situation by forgetting or stopping thinking about it. Literally: to turn the page.

Es hora de pasar página y olvidar ese fracaso.

neutral
"Irse de la cabeza"

— To slip one's mind. When something you were going to say or do is suddenly forgotten.

Tenía que decirte algo, pero se me fue de la cabeza.

informal
"Quedarse en blanco"

— To draw a blank. To suddenly forget everything during a test or speech.

En el examen me quedé en blanco y lo olvidé todo.

informal
"Estar en las nubes"

— To be distracted, which often leads to forgetting things. Head in the clouds.

Siempre olvida sus cosas porque está en las nubes.

informal
"Enterrar el hacha de guerra"

— To forget a conflict and make peace. To bury the hatchet.

Finalmente enterraron el hacha de guerra y olvidaron sus diferencias.

neutral
"Llevarse el secreto a la tumba"

— To never reveal a secret, ensuring it is forgotten when one dies.

Olvidará la verdad y se llevará el secreto a la tumba.

neutral
"Ser agua pasada"

— To be 'water under the bridge.' Something from the past that should be forgotten.

Eso ya es agua pasada, olvídalo.

informal

Easily Confused

olvidar vs recordar

It is the opposite, but learners often mix up the conjugations.

'Olvidar' is to lose a memory; 'recordar' is to keep or recall one. Both are transitive.

Olvidé su nombre, pero recuerdo su cara.

olvidar vs acordarse

Both are pronominal and use 'de'.

'Olvidarse de' is to forget; 'acordarse de' is to remember. They use the same 'me... de' structure.

Me olvidé de la cita, pero me acordé del regalo.

olvidar vs quedarse

In English, we say 'I left my keys,' which can be 'me quedé sin llaves' or 'olvidé mis llaves'.

'Quedarse' means to stay or remain. 'Olvidar' means to forget.

Me quedé en casa porque olvidé las llaves.

olvidar vs perder

If you forget something, you might lose it.

'Perder' is to lose possession; 'olvidar' is to lose the memory of where it is or that you need it.

Olvidé el paraguas en el tren y ahora lo he perdido.

olvidar vs desatender

Both can mean not paying attention.

'Desatender' is a conscious lack of attention to a duty; 'olvidar' is usually an unconscious memory failure.

Olvidó la reunión porque desatendió su calendario.

Sentence Patterns

A1

[Sujeto] + olvidar + [Objeto]

Juan olvida su libro.

A2

[Sujeto] + se + olvidar + de + [Objeto]

Yo me olvidé de la llave.

B1

Se + [Pronombre OI] + olvidó + [Sujeto]

Se me olvidó la tarea.

B2

Intentar + olvidar + [Concepto]

Intento olvidar mis problemas.

C1

Habiendo + olvidado + [Objeto]

Habiendo olvidado el código, no pude entrar.

C2

Caer + en + el + olvido

Sus palabras cayeron en el olvido.

A1

No + olvidar + [Objeto]

No olvides el pan.

B1

Espero que + no + se + [OI] + olvide

Espero que no se te olvide.

Word Family

Nouns

Verbs

Adjectives

Related

How to Use It

frequency

Very High. It is one of the top 500 most used verbs in Spanish.

Common Mistakes
  • *Me olvidé la tarea. Me olvidé de la tarea.

    When using the pronominal form 'olvidarse,' the preposition 'de' is mandatory.

  • *Se me olvidó las llaves. Se me olvidaron las llaves.

    The verb must agree with the subject (las llaves), which is plural.

  • *Olvidé de llamarte. Olvidé llamarte.

    The simple transitive 'olvidar' does not take 'de'. Only 'olvidarse' does.

  • *Yo se me olvidó. Se me olvidó.

    In the accidental construction, the person is the indirect object (me), so you don't use the subject pronoun 'yo'.

  • Using 'olvidar' when you mean 'dejar'. Dejé el libro en casa.

    If you specify the location, 'dejar' is more natural than 'olvidar'.

Tips

The 'De' Rule

If you use a reflexive pronoun (me, te, se, nos, os, se), you must use 'de'. If you don't use a pronoun, don't use 'de'. Me olvidé DE la tarea vs. Olvidé la tarea.

Sound Like a Native

Use 'Se me olvidó' for small, daily accidents. It sounds much more natural than 'Yo olvidé'.

Physical Objects

If you know where you left something, use the verb 'dejar' instead of 'olvidar'. 'Dejé el móvil en el coche' sounds better than 'Olvidé el móvil en el coche'.

Formal Contexts

In academic or professional writing, prefer the simple transitive 'olvidar' over the accidental 'se' construction.

Mnemonic

Think of an 'Old Guitar' that you forgot how to play. Ol-vi-dar / Old-gui-tar.

Pronoun Clues

Listen for 'se me', 'se te', 'se le'. These always signal that an accidental forgetting is being described.

Politeness

Using 'se me olvidó' is a polite way to shift blame away from yourself when you make a mistake.

Plural Agreement

In 'Se me olvidaron las llaves', the verb is plural because 'las llaves' is the subject.

Inolvidable

Learn the adjective 'inolvidable' (unforgettable). It is a great word to use for positive experiences.

Quick Responses

Use '¡Olvídalo!' to quickly dismiss a minor apology from someone else.

Memorize It

Mnemonic

Think of an 'Old Guitar' that you haven't played in years. You have 'olvidar-ed' (forgotten) how to play the 'old guitar.' The sounds are very similar: Ol-vi-dar / Old-gui-tar.

Visual Association

Imagine a person walking out of their house and a giant floating 'S' and 'E' (from 'se me olvidó') tripping them as their keys fly out of their pocket. This associates the 'se' construction with an accident.

Word Web

Memoria Recuerdo Llaves Pasado Perdón Mente Inolvidable Tarea

Challenge

Try to use the phrase 'Se me olvidó' three times today when you make a small mistake, even if you are speaking English, just to get the rhythm of the 'accidental se' in your head.

Word Origin

From the Vulgar Latin *oblitare*, which is a frequentative form of the Classical Latin verb *oblivisci* (to forget). The Latin root *ob-* means 'against' or 'over' and *levis* relates to 'smooth' or 'light', suggesting a smoothing over of the mind.

Original meaning: To lose the memory of something, to let something slip away from the mind.

Romance (Indo-European)

Cultural Context

Be careful when telling someone '¡Olvídalo!' in a serious situation; depending on the tone, it can sound dismissive rather than helpful.

English speakers often feel 'se me olvidó' is a way of 'making excuses,' but in Spanish, it is simply the standard, polite way to acknowledge a memory lapse without sounding overly dramatic.

The song 'Inolvidable' by Luis Miguel. The 'peste del olvido' in Gabriel García Márquez's 'Cien años de soledad'. The poem 'Puedo escribir los versos más tristes esta noche' by Pablo Neruda ('Es tan corto el amor, y es tan largo el olvido').

Practice in Real Life

Real-World Contexts

At school

  • Olvidé mi cuaderno.
  • Se me olvidó la tarea.
  • No olvides estudiar.
  • He olvidado la respuesta.

At home

  • No olvides apagar la luz.
  • Se me olvidó comprar leche.
  • ¿Olvidaste cerrar la puerta?
  • Me olvidé de sacar la basura.

Socializing

  • ¡Olvídalo, no es importante!
  • Perdona, olvidé tu nombre.
  • Nunca te olvidaré.
  • Se me olvidó que teníamos planes.

Work

  • Olvidé adjuntar el archivo.
  • Se me olvidó la contraseña.
  • No debemos olvidar los plazos.
  • Me olvidé de la reunión.

Travel

  • Olvidé mi pasaporte.
  • No olvides el cargador.
  • Se me olvidó el mapa.
  • ¿Dónde olvidamos las maletas?

Conversation Starters

"¿Qué es lo más importante que has olvidado alguna vez?"

"¿Eres una persona olvidadiza o tienes buena memoria?"

"¿Qué cosas te gustaría olvidar de tu pasado?"

"¿Alguna vez se te olvidó algo en un primer encuentro romántico?"

"¿Crees que es mejor perdonar y olvidar, o perdonar pero no olvidar?"

Journal Prompts

Escribe sobre un día en el que se te olvidó algo muy importante y qué pasó después.

¿Crees que la tecnología nos hace olvidar más cosas? Explica por qué.

Describe un momento inolvidable de tu infancia que nunca quieres olvidar.

Haz una lista de cinco cosas que no debes olvidar hacer esta semana.

Reflexiona sobre la frase 'El olvido es la única venganza y el único perdón' de Borges.

Frequently Asked Questions

10 questions

Both are correct, but 'olvidarse de algo' is much more common in spoken Spanish. If you use the reflexive pronoun (me, te, se, etc.), you must use 'de'. If you don't use the pronoun, don't use 'de'. For example: 'Olvidé el libro' or 'Me olvidé del libro'. Mixing them like 'Olvidé de el libro' is incorrect.

The 'accidental se' construction is 'Se me olvidó' (for singular objects) or 'Se me olvidaron' (for plural objects). It literally means 'It forgot itself to me.' It is the most common and polite way to say 'I forgot' in Spanish because it implies the action was an accident beyond your control.

Use 'dejar' when you mention the place where you left something. For example, 'Dejé mis llaves en la mesa' (I left my keys on the table). Use 'olvidar' when the focus is simply on the fact that you don't have the item or the memory: 'Olvidé mis llaves' (I forgot my keys).

It can be both! 'Olvido' is the first-person singular present tense of the verb olvidar (I forget). However, 'el olvido' is also a noun meaning 'oblivion' or 'forgetfulness.' Context will tell you which is which: 'Yo olvido' (verb) vs. 'Caer en el olvido' (noun).

The word is 'inolvidable.' It is a very common and beautiful adjective. For example: 'Fue una noche inolvidable' (It was an unforgettable night).

It is a regular -ar verb: olvidé, olvidaste, olvidó, olvidamos, olvidasteis, olvidaron. For example: 'Ayer olvidé mi paraguas' (Yesterday I forgot my umbrella).

Not directly, but the phrase 'perdonar y olvidar' (to forgive and forget) is very common. 'Olvidar un agravio' means to move past a slight or insult, which is a form of forgiveness.

'Olvidar' is the general word for forgetting. 'Omitir' is more formal and specific, used when you leave something out of a list, a speech, or a document, often implying it was an error in a professional or academic context.

The most common way is '¡Olvídalo!' or '¡Olvídaló!' if you are in Argentina/Uruguay (voseo). You can also say 'No importa' or 'Déjalo así'.

In the accidental 'se' construction, the thing forgotten is actually the grammatical subject of the sentence. Since 'las llaves' is plural, the verb 'olvidar' must also be plural ('olvidaron') to agree with it.

Test Yourself 200 questions

writing

Write a sentence in Spanish saying 'I forgot the keys' using the accidental se construction.

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writing

Translate to Spanish: 'Don't forget to buy bread.'

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writing

Write a sentence using 'olvidarse de' in the preterite for 'we'.

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writing

Use 'olvidar' in the future tense for 'they'.

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writing

Write a short sentence about an unforgettable day.

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writing

Translate: 'I hope you don't forget me.'

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writing

Write a sentence using 'olvidar' meaning 'to neglect'.

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writing

Create a question asking 'Did you forget something?'

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Use the accidental se with 'el pasaporte'.

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writing

Translate: 'It's better to forget the past.'

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writing

Write a sentence using the word 'olvidadizo'.

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writing

Translate: 'I have forgotten your phone number.'

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writing

Write a command telling someone (usted) not to forget the documents.

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writing

Use 'olvidar' in the imperfect tense for 'I'.

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writing

Translate: 'The keys were forgotten on the table.' (accidental)

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writing

Write a sentence about forgetting a name.

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writing

Translate: 'We will never forget this moment.'

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writing

Write a sentence using 'caer en el olvido'.

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writing

Translate: 'Forget what I said.'

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writing

Write a sentence using 'olvidarse de' + infinitive.

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speaking

Say 'I forgot' in Spanish casually.

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speaking

Remind a friend not to forget their backpack.

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speaking

Tell someone to 'forget it' (it's not important).

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speaking

Say 'I forgot to call you' using 'olvidarse de'.

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speaking

Say 'I forgot the keys' (accidentally).

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speaking

Ask someone: 'Did you forget the map?'

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speaking

Say: 'I will never forget you.'

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speaking

Say: 'I completely forgot.'

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speaking

Tell a group: 'Don't forget the homework.'

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speaking

Say: 'I hope you don't forget the date.'

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speaking

Say: 'He is very forgetful.'

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speaking

Say: 'I draw a blank during tests.'

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speaking

Say: 'We forgot about the meeting.'

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Say: 'She forgot her wallet at home.'

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speaking

Say: 'Forget the past and look at the future.'

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speaking

Ask: 'Have you forgotten about me?'

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Say: 'It was an unforgettable night.'

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Say: 'I forgot to attach the file.'

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speaking

Say: 'Don't forget that I love you.'

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speaking

Say: 'My name fell into oblivion.'

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listening

Audio describes: A man looking for his keys and saying 'Se me quedaron en la mesa.' Is he using olvidar?

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listening

Audio says: 'Nunca me olvidaré de este día.' What tense is used?

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listening

Audio says: 'Se me olvidó el pan.' Did the speaker buy the bread?

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listening

Audio says: 'No lo olvides.' Is it a command?

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listening

Audio says: 'Me olvidé de las llaves.' Is the 'de' correct?

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listening

Audio says: 'Se le olvidaron los papeles.' How many things were forgotten?

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listening

Audio says: '¡Olvídalo!' Is the speaker happy or dismissive?

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listening

Audio says: 'He olvidado tu dirección.' What has been forgotten?

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listening

Audio says: 'Espero que no se os olvide.' Who is the speaker talking to?

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listening

Audio says: 'Fue un error por olvido.' Is 'olvido' a noun or verb?

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listening

Audio says: 'Omitimos los detalles.' Is this formal or informal?

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listening

Audio says: 'Se me olvidó llamarte.' What was the action?

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listening

Audio says: 'No te olvides de mí.' Is this romantic?

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listening

Audio says: 'Se nos olvidó la maleta.' Did one person forget or a group?

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listening

Audio says: 'Olvidé que hoy era lunes.' What day did they forget?

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/ 200 correct

Perfect score!

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