Oublier de faire vs. Oublier d'avoir fait
forgot to do et forgot doing te permet d'exprimer avec précision tes souvenirs et tes tâches.
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 do et doing change toute ton histoire. Utiliser le mauvais pourrait faire croire à tes amis que tu as une amnésie au lieu d'être juste un peu désordonné.-ing), d'autres les infinitifs (to), et certains — comme forget — sont de vraies *drama queens*. Ils changent complètement de sens selon celui qui suit.forget avec un infinitif, tu parles d'un devoir ou d'une tâche qui n'a pas eu lieu. C'est la version to-do list du verbe.How This Grammar Works
to).-ing). L'action s'est passée dans le passé, et maintenant tu regardes l'enregistrement dans ta tête. Si tu dis I forgot to meet him, tu es resté chez toi et il est probablement en train de t'envoyer des emojis en colère.
I forgot meeting him, vous vous êtes vraiment assis, avez pris un café, parlé pendant une heure, et puis tu as complètement effacé cet événement de ta banque de mémoire. L'un te fait passer pour quelqu'un de tête en l'air ; l'autre pour quelqu'un d'un peu sans cœur ! La plupart des gens utilisent l'infinitif pour les corvées quotidiennes et le gérondif pour les grands moments de la vie.
Formation Pattern
Zappeur de Tâchesou un
Perdeur de Mémoire.
forget au bon temps. Tu peux utiliser forget, forgot, ou will never forget.
to + la base verbale. (Exemple : I forgot to post the TikTok).
-ing. (Exemple : I'll never forget posting my first TikTok).
Conjugation Table
| Form | Example | Vibe |
|---|---|---|
| --- | --- | --- |
| Infinitive (Task) | I forgot to lock the door. |
La porte est grand ouverte en ce moment. Oups. |
| Gerund (Memory) | I forgot locking the door. |
Je l'ai verrouillée, mais je n'ai aucun souvenir de l'avoir fait. |
| Future Task | Don't forget to call me! |
Un rappel pour ton futur toi. |
| Never + Gerund | I'll never forget traveling to Tokyo. |
Ce voyage était épique et je vois encore les lumières. |
When To Use It
forget + to quand tu parles de responsabilités. C'est la grammaire de la vie d'adulte. Utilise-le pour les rappels, les dates limites manquées, ou ces moments où tu réalises que tu as laissé ton parapluie dans le bus.Sorry, I forgot to unmute myself! (Une ambiance classique des années 2020). Utilise forget + -ing pour les expériences. C'est presque toujours associé à never pour parler de choses sentimentales.seeing that sunset in Ibiza", ça fait une super légende Instagram. Tu peux aussi l'utiliser quand tu as vraiment fait quelque chose mais que ton cerveau n'a pas sauvegardé le fichier. Si tu es à une fête et que quelqu'un dit "On s'est rencontrés l'année dernière !" et que tu n'en as aucune idée, tu pourrais dire "I'm so sorry, I totally forgot meeting you!".Common Mistakes
that alors qu'un gérondif est bien plus fluide. Au lieu de I forgot that I met him, essaie
I forgot meeting him. Ça sonne plus naturel et moins comme un robot qui lit une base de données. Un autre piège est d'utiliser le gérondif pour les tâches. Si tu dis
I forgot calling my mom, ça veut dire que tu l'as appelée mais que tu ne t'en souviens pas. Ta maman sera quand même contente parce qu'elle a eu l'appel. Mais si tu voulais dire que tu ne l'as pas appelée du tout, tu DOIS dire
I forgot to call my mom. Utiliser le mauvais ici pourrait mener à des dîners de famille très confus. Aussi, surveille tes temps ! Les gens oublient souvent que forget est un verbe irrégulier (forget, forgot, forgotten). Dire I have forgetted fera pleurer ton prof d'anglais. Reste précis : I forgot ou I have forgotten.Contrast With Similar Patterns
remember, regret et stop. Ils suivent tous la même logique. Remember to est une tâche future ; remember -ing est un souvenir passé.forget. Regret to tell you est pour les mauvaises nouvelles que tu es sur le point d'annoncer (ambiance formelle Zoom), alors que regret telling you signifie que tu as déjà vendu la mèche et que maintenant tu te sens mal à ce sujet. Stop to smoke veut dire que tu as interrompu ta marche pour fumer une cigarette.Stop smoking veut dire que tu as enfin arrêté cette habitude. Vois to comme une destination que tu n'as pas encore atteinte, et -ing comme une route que tu as déjà parcourue. Si tu peux maîtriser forget, tu as fondamentalement débloqué le code de triche pour tous ces autres verbes aussi.Action vs Mémoire.
Quick FAQ
Can I say
I forgot that I had to...?
Tu peux, mais I forgot to... est bien plus percutant et courant dans les textos et les conversations décontractées.
Is
I forgot meeting himalways negative?
D'habitude, oui. On l'utilise pour montrer qu'on a perdu un souvenir. Si tu t'en souviens, tu utiliserais remember.
Does this work with will?
Absolument !
I will never forget visiting Parisest une façon classique d'exprimer un souvenir impérissable.
Can I use it for food?
Bien sûr !
I forgot to eat lunch(j'ai faim) vs
I forgot eating that burger(j'étais tellement distrait que je ne me souviens pas du goût).
Is it okay for formal emails?
Utilise l'infinitif pour les tâches comme
I forgot to attach the file. Le gérondif est généralement trop personnel/émotionnel pour les e-mails professionnels, à moins que tu ne partes à la retraite.
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
| Structure | Signification | Exemple |
|---|---|---|
|
Forgot + to + verb
|
Tu avais l'intention de faire quelque chose mais tu ne l'as pas fait.
|
I forgot to send the email.
|
|
Forgot + verb-ing
|
Tu as fait quelque chose mais tu ne t'en souviens plus.
|
I forgot sending the email.
|
|
Purpose
|
Exprimer une intention ou une tâche non accomplie.
|
I forgot to buy milk.
|
|
Purpose
|
Exprimer un souvenir oublié d'une action déjà réalisée.
|
I forgot seeing that movie.
|
|
Action Status
|
L'action NE s'est PAS produite.
|
He forgot to turn off the light.
|
|
Action Status
|
L'action S'EST produite.
|
He forgot turning off the light.
|
|
Common Error
|
Utiliser le -ing quand l'action n'a pas été faite.
|
❌ I forgot calling him (meaning I didn't call).
|
|
Common Error
|
Utiliser to + verb quand l'action a été faite.
|
❌ I forgot to call him (meaning I called but don't recall).
|
Spectre de formalité
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: Chose à faire vs. Chose faite
`To + Verb` (Infinitif)
- Tâche non accomplie Forgot to send email
- Obligation manquée Forgot to call mom
- Intention future Don't forget to buy milk
`Verb-ing` (Gérondif)
- Souvenir oublié Forgot seeing film
- Manque de mémoire Forgot meeting him
- Action passée Forgot saying that
Comparaison des actions avec « Forget »
Décider entre « Forget to do » et « Forgot doing »
L'action a-t-elle eu lieu ?
Est-ce une tâche que tu n'as pas réussi à accomplir ?
Dois-tu t'excuser de ne pas avoir fait quelque chose ?
Situations quotidiennes avec « Forget »
Tâches oubliées
- • Forgot to buy groceries
- • Forgot to pay bill
- • Forgot to call friend
- • Forgot to close window
Trous de mémoire
- • Forgot seeing that movie
- • Forgot meeting that person
- • Forgot saying something silly
- • Forgot visiting that place
Rappels courants
- • Don't forget to lock door
- • Remember to set alarm
- • Never forget to be kind
Exemples par niveau
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.
Facile à confondre
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.
Erreurs courantes
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.
Structures de phrases
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.
Intention vs. Souvenir
I forgot to call her. Utilise « forgot doing » pour les expériences passées dont tu ne te souviens plus, par exemple :
I forgot meeting him last year.
Les conséquences sont différentes
I forgot sending the reportalors que tu voulais dire
I forgot to send the report, ton patron croira que c'est envoyé alors que ce n'est pas le cas.
Lien avec 'Remember'
I remember to do something, tu vas faire l'action. Si tu dis
I remember doing something, tu te souviens de l'événement passé.
Excuses et Responsabilité
I forgot to do Xest un aveu d'oubli et implique que tu vas corriger.
I forgot doing Xpeut sonner moins responsable, sauf si tu ajoutes un contexte précis. Par exemple,
I forgot saying that, but it sounds like me!.
Concentration sur le 'To'
I forgot to pack my bag.
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.
Prononciation
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.
Mémorise-le
Moyen mnémotechnique
To is for 'To-Do'; Ing is for 'In the past'.
Association visuelle
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
Défi
Write down three things you forgot to do yesterday, and one amazing thing you will never forget doing in your life.
Notes culturelles
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'.
Amorces de conversation
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?
Sujets d'écriture
Erreurs courantes
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
Exercices pratiques
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
FAQ (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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