Olvidé hacer vs. Olvidé habiendo hecho
forgot to do vs. forgot doing te da una precisión increíble para hablar de memoria y tareas pendientes o hechas.
Grammar Rule in 30 Seconds
Use 'to' for tasks you missed and '-ing' for memories you lost.
- Forgot to do: You didn't do the task. Example: 'I forgot to call him.'
- Forgot doing: You did it, but don't remember. Example: 'I forgot calling him.'
- Negative focus: 'Never forget doing' is common for vivid memories.
Overview
to + verb) o de un gerundio (verb-ing). El verbo forget representa un caso de estudio esencial, ya que la elección de una u otra forma altera drásticamente el significado de lo que queremos decir. Para nosotros, los hispanohablantes, esta distinción no es simplemente una cuestión de estilo; refleja una diferencia fundamental en la relación temporal entre el acto de olvidar y la acción en sí misma.olvidé cerrar, olvidé decirte), y si queremos referirnos a un recuerdo perdido, a menudo cambiamos el verbo a 'recordar' en negativo (ej.no recuerdo haber dicho eso). El inglés, en cambio, utiliza la estructura gramatical del verbo que sigue a
forget para dar ese contexto.forget y a otros verbos como remember, try y stop.forgot to send) que decirle que *no recuerdas haberlo enviado* (forgot sending).forget + infinitive y forget + gerund depende totalmente de cuándo ocurre el olvido en relación con la acción que se describe. Imagina una línea de tiempo. Si el olvido ocurre *antes* de que la acción se realice, usamos el infinitivo.forget + to + verb, el infinitivo indica una acción que estaba planeada, era obligatoria o se pretendía hacer, pero que nunca se llevó a cabo porque te olvidaste en el momento preciso. El enfoque aquí es la omisión. Es como ese ítem en tu lista de tareas de WhatsApp que se quedó sin el 'check'.I forgot to lock the door, significa que tenías que cerrar la puerta, pero no lo hiciste. La puerta quedó abierta. Esta estructura casi siempre implica una consecuencia o una responsabilidad no cumplida.forget + verb-ing, el gerundio se refiere a una acción que definitivamente ocurrió en el pasado, pero de la cual ya no conservas el recuerdo. El olvido sucede *después* de que la acción se ha completado. Aquí, el enfoque es la pérdida de memoria.I forgot meeting him, significa que el encuentro ocurrió, pero no tienes ese recuerdo en tu mente. Para ti, él es un extraño, aunque él jure que hablaron durante horas.Forget + to + verb | Futuro (respecto al olvido) | No hiciste la acción. |Forget + verb-ing | Pasado (respecto al olvido) | Hiciste la acción, pero no lo recuerdas. |olvidé hacer. Pero si dices I forgot calling you cuando querías decir que se te pasó llamarme, tu interlocutor pensará que sí lo llamaste pero que tienes amnesia. ¡Es un matiz vital!forget. El verbo que lo acompaña (el infinitivo o el gerundio) mantiene su forma.to + verb)- Afirmativo:
Subject + forget/forgot + to + verb I forgot to buy milk.(No compré leche).- Negativo (Recordatorio):
Don't forget + to + verb Don't forget to send the email.(No te olvides de enviarlo).- Presente Perfecto:
Subject + has/have forgotten + to + verb He has forgotten to pay the rent.(No ha pagado el alquiler).
verb-ing)will never para dar énfasis.- Afirmativo:
Subject + forget/forgot + verb-ing I forgot reading that book in high school.(Lo leí, pero no lo recordaba hasta ahora).- Con 'Never':
Subject + will never forget + verb-ing I will never forget traveling to Japan.(Nunca olvidaré la experiencia de haber viajado a Japón).- Negativo:
Subject + didn't forget + verb-ing I didn't forget meeting her.(Sí recuerdo haberla conocido).
I always forget to take my keys. | I often forget meeting people at parties. |She forgot to call the doctor. | She forgot calling the doctor (she did it but forgot). |I won't forget to do it. | I will never forget seeing the Eiffel Tower. |Forget + to + verb (La tarea pendiente)- En el trabajo:
I forgot to attach the file to the email.(El archivo no está en el correo). - En la casa:
Did you forget to turn off the oven?(¿El horno sigue encendido?). - En situaciones sociales:
I'm sorry, I forgot to tell you about the party.(No te avisé, por eso no sabías).
Forget + verb-ing (La memoria borrada)- Experiencias de vida:
I'll never forget swimming with dolphins.(Es un recuerdo que atesoro). - Confusiones:
I completely forgot asking for a discount, but the receipt says I did.(Pedí el descuento, pero no lo recordaba). - Hechos olvidados:
She forgot living in London when she was a toddler.(Vivió allí, pero era muy pequeña para recordarlo).
Infinitivo UniversalOlvidé cerrar la ventana. Si traduces palabra por palabra, obtienes
I forgot to close the window. Esto es correcto si la ventana sigue abierta.No recuerdo haber cerrado la ventana (aunque creo que lo hice), muchos alumnos vuelven a usar
I forgot to close.- Incorrecto:
I forgot to close the window, but it is closed now. - Correcto:
I forgot closing the window, but it is closed now. - Por qué sucede: Porque en español no tenemos una distinción gramatical tan marcada entre el olvido de una acción y el olvido de un recuerdo usando solo el verbo principal.
Forget con LeaveOlvidé las llaves en casa. En inglés, si mencionas el lugar, no puedes usar
forget.- Incorrecto:
I forgot my keys at home. - Correcto:
I left my keys at home. - Correcto:
I forgot my keys.(Sin mencionar el lugar). - Por qué sucede: En español, 'olvidar' cubre tanto el descuido mental como el dejar un objeto físicamente en un sitio. En inglés,
forgetes solo para el proceso mental.
- Incorrecto:
Don't forget calling me tonight. - Correcto:
Don't forget to call me tonight. - Por qué sucede: El alumno asocia el gerundio con algo continuo o importante, pero para una instrucción futura, el infinitivo es obligatorio.
Forget no es el único verbo que cambia de significado según lo que le siga. Hay un grupo de verbos que siguen esta misma lógica de Pasado vs. Futuro/Tarea. Compararlos te ayudará a ver el patrón general del inglés.
Remember to buy bread. | Recordar haber hecho algo. I remember buying bread. |I stopped to smoke. | Dejar de hacer una actividad. I stopped smoking. |I tried to open the window. | Experimentar con un método para ver si funciona. Try opening the window (to see if it gets cooler). |I regret to tell you that... | Arrepentirse de algo hecho en el pasado. I regret telling him the secret. |forget + verb-ing en el día a día?forget + to + verb, porque solemos olvidar más tareas que recuerdos. Sin embargo, es muy frecuente en su forma negativa: I'll never forget meeting you (Nunca olvidaré haberte conocido). Es una frase muy natural en contextos sentimentales o de viajes.forget that para evitar complicaciones?truco de supervivencia. Puedes decir I forgot that I had to call him (Olvidé que tenía que llamarlo) o I forgot that I called him (Olvidé que lo llamé). Es gramaticalmente correcto y muy común, aunque usar el infinitivo o gerundio te hace sonar más fluido y avanzado.forgot to do cuando quería decir forgot doing?I forgot to pay you a un amigo, él esperará que le des el dinero en ese momento. Si ya le habías pagado pero no lo recordabas, ¡estarías perdiendo dinero por un error gramatical!I forgot paying you (Olvidé que ya te había pagado).Conjugating 'Forget' with Complements
| Tense | Forget Form | Infinitive (Task) | Gerund (Memory) |
|---|---|---|---|
|
Present Simple
|
forget / forgets
|
I forget to call.
|
I forget calling.
|
|
Past Simple
|
forgot
|
I forgot to call.
|
I forgot calling.
|
|
Present Perfect
|
have forgotten
|
I've forgotten to call.
|
I've forgotten calling.
|
|
Future
|
will forget
|
I'll forget to call.
|
I'll forget calling.
|
|
Negative Future
|
will never forget
|
I'll never forget to call.
|
I'll never forget calling.
|
Common Contractions
| Full Form | Contraction | Example |
|---|---|---|
|
I did not forget
|
I didn't forget
|
I didn't forget to pay.
|
|
I will not forget
|
I won't forget
|
I won't forget to write.
|
|
I have forgotten
|
I've forgotten
|
I've forgotten to ask.
|
Meanings
The verb 'forget' changes meaning depending on whether it is followed by an infinitive (to + verb) or a gerund (verb + -ing).
Failure to perform a task
Using the infinitive indicates that a person did not perform an action because they did not remember it at the necessary time.
“Don't forget to buy milk on your way home.”
“She forgot to tell me about the meeting.”
Loss of memory of a past event
Using the gerund indicates that an action was performed in the past, but the person has no mental record or recollection of it.
“I'll never forget meeting you for the first time.”
“He forgot lending me the money, so he asked for it again.”
Neglecting a duty (Formal)
In formal contexts, 'forget to' can imply a failure of responsibility rather than just a memory slip.
“The defendant forgot to mention his previous convictions.”
“The company forgot to update its privacy policy.”
Reference Table
| Estructura | Significado | Ejemplo |
|---|---|---|
|
Forgot + to + verb
|
Teníamos la intención de hacer algo, pero no lo hicimos.
|
I forgot to send the email.
|
|
Forgot + verb-ing
|
Hicimos algo, pero no lo recordamos.
|
I forgot sending the email.
|
|
Propósito
|
Para expresar una intención o tarea no completada.
|
I forgot to buy milk.
|
|
Propósito
|
Para expresar un recuerdo olvidado de una acción completada.
|
I forgot seeing that movie.
|
|
Estado de la Acción
|
La acción NO ocurrió.
|
He forgot to turn off the light.
|
|
Estado de la Acción
|
La acción SÍ ocurrió.
|
He forgot turning off the light.
|
|
Error Común
|
Usar `-ing` cuando la acción no se hizo.
|
❌ I forgot calling him (meaning I didn't call).
|
|
Error Común
|
Usar `to + verb` cuando la acción sí se hizo.
|
❌ I forgot to call him (meaning I called but don't recall).
|
Espectro de formalidad
I neglected to transmit the report. (Workplace communication)
I forgot to send the report. (Workplace communication)
I totally blanked on the report. (Workplace communication)
I straight up forgot the report, my bad. (Workplace communication)
Forget: Tarea vs. Hecho
`To + Verb` (Infinitivo)
- Tarea Incompleta Forgot to send email
- Obligación Omitida Forgot to call mom
- Intención Futura Don't forget to buy milk
`Verb-ing` (Gerundio)
- Memoria Olvidada Forgot seeing film
- Falta de Recuerdo Forgot meeting him
- Acción Pasada Forgot saying that
Comparación de Acciones con `Forget`
Decidiendo 'Forget to do' vs. 'Forgot doing'
¿Ocurrió la acción?
¿Es una tarea que no lograste completar?
¿Necesitas disculparte por no hacer algo?
Situaciones Cotidianas con `Forget`
Fallos en la Lista de Tareas
- • Forgot to buy groceries
- • Forgot to pay bill
- • Forgot to call friend
- • Forgot to close window
Lapsos de Memoria
- • Forgot seeing that movie
- • Forgot meeting that person
- • Forgot saying something silly
- • Forgot visiting that place
Recordatorios Comunes
- • Don't forget to lock door
- • Remember to set alarm
- • Never forget to be kind
Ejemplos por nivel
Don't forget to call me.
No te olvides de llamarme.
I forgot to do my homework.
Olvidé hacer mi tarea.
Please don't forget to close the door.
Por favor, no olvides cerrar la puerta.
He forgot to buy milk.
Él olvidó comprar leche.
I'll never forget meeting the president.
Nunca olvidaré conocer al presidente.
Did you forget to bring your passport?
¿Olvidaste traer tu pasaporte?
She forgot to send the email yesterday.
Ella olvidó enviar el correo ayer.
I forgot seeing that movie before.
Olvidé haber visto esa película antes.
I forgot to lock the car, so I had to go back.
Olvidé cerrar el coche, así que tuve que volver.
I completely forgot meeting him at the party last year.
Olvidé por completo haberlo conocido en la fiesta el año pasado.
Don't forget to check the weather before you leave.
No olvides revisar el clima antes de irte.
He forgot taking his medicine this morning.
Él olvidó que se tomó su medicina esta mañana.
I forgot to mention that the office will be closed on Friday.
Olvidé mencionar que la oficina estará cerrada el viernes.
I'll never forget walking across the stage at graduation.
Nunca olvidaré caminar por el escenario en la graduación.
Have you forgotten to sign the contract?
¿Has olvidado firmar el contrato?
She forgot telling me the secret, so she told me again.
Ella olvidó que me había contado el secreto, así que me lo contó de nuevo.
I forgot to include the citations in the first draft.
Olvidé incluir las citas en el primer borrador.
One never forgets being treated with such kindness.
Uno nunca olvida ser tratado con tanta amabilidad.
He had forgotten to set the alarm, which resulted in a chaotic morning.
Había olvidado poner la alarma, lo que resultó en una mañana caótica.
I forgot having promised to help him move house.
Olvidé haber prometido ayudarlo a mudarse.
The witness forgot to disclose his financial interest in the company.
El testigo olvidó revelar su interés financiero en la empresa.
I shall never forget standing atop the Himalayas, breathless and humbled.
Nunca olvidaré estar de pie en la cima del Himalaya, sin aliento y humilde.
To forget to act is one thing; to forget having acted is quite another.
Olvidar actuar es una cosa; olvidar haber actuado es otra muy distinta.
She forgot being reprimanded as a child for her curiosity.
Ella olvidó haber sido reprendida de niña por su curiosidad.
Fácil de confundir
Learners mix up the task/memory distinction just like with 'forget'.
This rule is different. 'Stop to' means you stop one action to start another. 'Stop doing' means you end an action.
Regret to is for giving bad news; Regret doing is for feeling sorry about the past.
Errores comunes
I forgot call him.
I forgot to call him.
Don't forget buy milk.
Don't forget to buy milk.
I forgot my keys at home.
I left my keys at home.
I forgot to meeting him.
I forgot meeting him.
I forgot to meeting her last year.
I forgot meeting her last year.
I'll never forget to see the ocean.
I'll never forget seeing the ocean.
Did you forget to locking the door?
Did you forget to lock the door?
I forgot sending the email, so I sent it again.
I forgot to send the email, so I sent it now.
She forgot to having been there.
She forgot having been there.
I forgot to tell you that I already told you.
I forgot telling you that.
He forgot to be told.
He forgot being told.
I forgot to mention to have seen him.
I forgot to mention seeing him.
I forgot to do it yesterday (when I actually did it).
I forgot doing it yesterday.
Patrones de oraciones
I forgot to ___ because ___.
I'll never forget ___ing ___.
Did you forget to ___ or did you just forget ___ing it?
Having forgotten to ___, I had to ___.
Real World Usage
Sorry, I forgot to reply!
I'll never forget leading my first team project.
Did you forget to include your order number?
Never forget chasing sunsets in Bali.
I forgot taking the pill this morning, so I took another one.
Don't forget to check your gate number.
Intención vs. Memoria
forgot to do para cosas que estaban en tu lista de 'cosas por hacer' y que nunca se hicieron. Usa forgot doing para experiencias pasadas que simplemente no puedes recordar. I forgot to buy milkvs.
I forgot seeing that movie.
Las Consecuencias Difieren
Relación con 'Remember'
I remember to call himvs.
I remember calling him.
Disculpas y Responsabilidad
I forgot to send the emailvs.
I forgot sending the email.
Enfócate en el 'To'
to + verb literalmente apunta *hacia* una acción que aún no se ha hecho. ¡Es una pista visual muy útil para intenciones no cumplidas! I forgot to close the door.
Smart Tips
Always use 'to'. You are apologizing for a task you didn't do.
Use 'never forget' + '-ing'. It sounds much more natural than 'I will always remember'.
Use the gerund in a question to ask about the memory itself.
Use 'neglected to' instead of 'forgot to' to sound more professional and precise.
Pronunciación
Reduction of 'to'
In 'forget to', the 'to' is often reduced to a schwa /tə/.
Linking 'forget' and '-ing'
When using the gerund, the final 't' of 'forget' or 'forgot' often links to the vowel of the next word.
Emphasis on 'never'
I will NEVER forget meeting her.
Conveys strong emotional significance.
Memorízalo
Mnemotecnia
To is for 'To-Do'; Ing is for 'In the past'.
Asociación visual
Imagine a 'To-Do' list with an empty checkbox for 'Forget to'. Imagine a photo album for 'Forget doing'.
Rhyme
If there's a task you didn't do, use the word that starts with TO. If it's a memory from the spring, use the word that ends in ING.
Story
John had a busy day. He forgot TO buy a ring (so he had no gift). Later, he forgot BUYING the ring (he found it in his pocket and was surprised).
Word Web
Desafío
Write down three things you forgot to do yesterday, and one amazing thing you will never forget doing in your life.
Notas culturales
British speakers often use 'forgotten' as the past participle, but in casual speech, 'forgot' is sometimes heard. 'I've forgot to do it' is common in some dialects but considered non-standard.
American English strictly uses 'forgotten' as the past participle. 'I've forgotten to...' is the standard way to express a recent missed task.
In corporate settings, saying 'I forgot to...' is seen as taking responsibility. Saying 'I forgot doing...' can sound like you are disorganized or have a poor memory for your own actions.
The word 'forget' comes from Old English 'forgytan', meaning 'to lose grip on' or 'to let go'.
Inicios de conversación
What is one thing you always forget to do in the morning?
Tell me about a trip you will never forget taking.
Have you ever forgotten to bring something important to an exam or interview?
Do you ever forget doing something, like locking the door, and have to check twice?
Temas para diario
Errores comunes
Test Yourself
Don't ___ your umbrella, it's going to rain later.
Choose the correct sentence:
Find and fix the mistake:
She completely forgot to watch that movie, even though she saw it last week.
Translate into English: 'Olvidé cerrar la puerta con llave.'
Answer starts with: ["I...
Score: /4
Ejercicios de practica
8 exercisesI forgot ___ (buy) a gift for the party, so I had to stop at the store.
Which sentence implies the person has a memory of the event?
Find and fix the mistake:
I'll never forget to see the Eiffel Tower for the first time.
I didn't remember to lock the door.
'I forgot to pay the bill' means the bill is still unpaid.
A: Why are you late? B: Sorry, I forgot ___ (set) my alarm.
1. I forgot to call. 2. I forgot calling.
Score: /8
Practice Bank
12 exercisesDon't ___ your umbrella, it's going to rain later.
Choose the correct sentence:
I must have forgotten to download that game because I just found it in my downloads folder.
Translate into English: 'Olvidé enviar el correo electrónico.'
Arrange these words into a sentence:
Match the phrases with the correct meaning:
I always ___ my phone at home, it's so frustrating!
Choose the correct sentence:
I'm so sorry, I totally forgot taking out the trash today.
Translate into English: '¿Olvidaste apagar las luces?'
Arrange these words into a sentence:
I can't believe I forgot to visit London last summer, even though I have photos!
Score: /12
Preguntas frecuentes (8)
Yes, 'forget about' is usually followed by a noun or a gerund. 'I forgot about the meeting' or 'I forgot about calling him.' It often means you stopped thinking about it.
It is less common than 'forgot to'. Most people use it with 'never' for big memories. In other cases, they might say 'I don't remember doing that' instead.
'Forgot' is for a specific time in the past. 'Have forgotten' is used when the forgetting still affects the present (e.g., 'I've forgotten my password').
This is very rare and usually grammatically incorrect. Stick to 'I forgot doing' for past actions.
Yes! 'Remember to do' is for tasks, and 'Remember doing' is for memories. They are perfect mirrors of each other.
For tasks: 'I didn't forget to...'. For memories: 'I'll never forget...ing'.
'Forgot' is the past tense. 'Forgotten' is the past participle used with 'have' or in the passive voice.
This is common in casual speech, but technically you should use 'left' when you mention a place. 'I left my keys at home' is better.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Olvidar + infinitivo / Olvidar que...
Spanish lacks a direct gerund equivalent for memories.
Oublier de + infinitif / Oublier d'avoir + participe passé
French uses the infinitive for both, just in different tenses.
Vergessen zu + Infinitiv / Vergessen, dass...
German does not use the gerund (-ing) form at all.
〜するのを忘れる / 〜したのを忘れる
Japanese changes the tense of the internal verb (present vs past).
Nasiya an + subjunctive / Nasiya annahu + past
Arabic uses clause structures rather than simple verb endings.
忘记 (Wàngjì) + Verb
Chinese relies on aspect markers rather than infinitive/gerund distinctions.
Learning Path
Prerequisites
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