Conditions Formelles : Dans l'éventualité où (Si)
professionnel.
Grammar Rule in 30 Seconds
'In the event that' is a formal substitute for 'if', used primarily in legal, professional, or emergency contexts.
- Use it for unlikely but possible future scenarios: 'In the event that it rains, the gala moves indoors.'
- Follow 'that' with a full clause (subject + verb): 'In the event that the alarm sounds...'
- Do not confuse with 'in the event of', which requires a noun: 'In the event of rain...'
Overview
in the event that est une conjonction conditionnelle formelle qui sert d'alternative précise et sérieuse à if. En français, nous pourrions traduire cela par « dans l'éventualité où » ou « au cas où », mais avec une nuance de formalisme bien plus marquée en anglais. Là où if introduit une possibilité générale, in the event that cadre spécifiquement une situation future comme une contingence prévue.in the event that est essentiel pour dépasser les phrases conditionnelles du quotidien et entrer dans le langage du discours professionnel et académique.if it rains est une simple prévision météo, in the event that the flood barriers are breached est une déclaration qui déclenche une réponse d'urgence spécifique et pré-arrangée. Le choix des mots implique qu'un plan existe, attendant d'être activé.in the event that fonctionne comme une conjonction de subordination. Elle introduit une proposition subordonnée qui pose une condition spécifique pour la proposition principale. Le principe fondamental qui régit cette structure est la formalisation de la relation de cause à effet.in the event that impose une rigidité temporelle différente.if, in the event that traite la condition comme un « événement » discret et définissable. Ce cadrage élimine l'ambiguïté et implique que la situation a été analysée.In the event that a payment is missed... définit le « retard de paiement » comme un déclencheur spécifique et vérifiable pour une conséquence contractuelle.If + Présent Simple, ... will + Verbe). Elle suit le même schéma temporel fondamental : le verbe dans la proposition subordonnée introduite par in the event that est au présent simple, même s'il fait référence à une possibilité future.will, must, should, may) ou un impératif pour énoncer le résultat prévu.- Condition générale (
if) :If you have a problem, you can email support.C'est un conseil utile, ouvert, mais pas un protocole formel. - Plan de contingence (
in the event that) :In the event that you encounter a critical system error, you must contact the IT department via the emergency hotline.Il s'agit d'une instruction spécifique pour un problème grave et prédéfini, impliquant qu'une procédure formelle est en place.
will / shall | Énonce un résultat définitif. | In the event that the primary server fails, the backup server will automatically take over. |must / should | Impose une obligation ou recommandation. | In the event that you forget your password, you must use the 'Forgot Password' link. |may / might | Indique un résultat possible. | Service interruptions may occur in the event that we perform unscheduled maintenance. |In the event that the alarm sounds, evacuate the building immediately. |in the event that suivent un modèle fiable et strict. La locution doit être suivie d'une proposition complète contenant un sujet et un verbe. Le temps de ce verbe est une règle non négociable.in the event that est toujours au présent simple lorsqu'il fait référence à un événement futur. Vous n'utilisez pas de futur comme will ou be going to. Cela reflète la structure du premier conditionnel.- Correct :
In the event that the session runs over time, the following session will be shortened. - Incorrect :
*In the event that the session will run over time... - Correct :
The company will issue a statement in the event that the merger is approved. - Incorrect :
*The company will issue a statement in the event that the merger will be approved.
- 1Proposition conditionnelle en tête : La phrase commence par
In the event that. Une virgule est obligatoire pour la séparer de la proposition principale.
- Modèle :
In the event that+ [Proposition de condition], [Proposition de résultat]. - Exemple :
In the event that the fire alarm is activated, all personnel must evacuate the building immediately.
- 1Proposition principale en tête : La phrase commence par le résultat ou l'action principale. Aucune virgule n'est utilisée avant
in the event that.
- Modèle : [Proposition de résultat]
in the event that+ [Proposition de condition]. - Exemple :
The contract will be terminated in the event that the client fails to meet the payment deadline.
In the event that | In the event that... | Introduit une contingence formelle. |...the speaker is unavailable... | Énonce l'événement futur prévu. |, (si en tête) | ...unavailable, | Sépare les propositions. |...a substitute will be provided. | Spécifie la conséquence prévue. |in the event that exclusivement dans des contextes exigeant de la formalité, du sérieux et de la précision. L'utiliser dans une conversation décontractée sonnerait artificiel et exagérément dramatique. Sa puissance réside dans son placement approprié dans des registres spécifiques.- Documents juridiques et contractuels : C'est le domaine principal. Il est utilisé pour définir des déclencheurs clairs pour des obligations contractuelles, des droits ou des pénalités. Un contrat de bail pourrait stipuler :
In the event that the tenant fails to pay rent for two consecutive months, the landlord reserves the right to begin eviction proceedings.
- Politiques et procédures officielles : Les manuels d'employés, les règlements académiques et les politiques de sécurité informatique s'appuient sur cette structure pour établir des protocoles non négociables. Par exemple, le code de conduite d'une université pourrait dire :
In the event that a student is found guilty of academic misconduct, their case will be forwarded to the disciplinary committee.
- Protocoles d'urgence et instructions de sécurité : Dans les situations à enjeux élevés où la clarté est primordiale,
in the event thatfournit des instructions sans ambiguïté. Vous le verrez dans les manuels de sécurité et l'entendrez lors des annonces avant le décollage en avion :In the event of a sudden loss in cabin pressure, oxygen masks will drop automatically.(Notez la variantein the event of+ nom, très courante).
- Rédaction technique et scientifique : Lors de la description de paramètres expérimentaux, cette expression maintient un ton objectif. Un protocole de recherche pourrait spécifier :
The experiment will be immediately halted in the event that the subject shows any signs of distress.
- Communication d'affaires formelle : Dans les lettres d'affaires de haut niveau, les plans de projet ou les rapports officiels, cela signale une planification minutieuse et une évaluation des risques. Un chef de projet pourrait écrire à un client :
Our team will proceed as planned. In the event that unforeseen circumstances cause a delay, we will notify you at the earliest opportunity.
in the event that dans les situations quotidiennes. Cela crée un décalage de registre souvent comique. Réservez-le pour les contextes formels listés ci-dessus.- Maladroit :
In the event that I miss the bus, I'll call you. - Naturel :
If I miss the bus, I'll call you.
will ou d'une autre forme future dans la proposition de condition après in the event that. En français, nous disons parfois « dans le cas où cela arrivera » (futur), ce qui nous pousse à calquer cette structure en anglais.- Incorrect :
*A backup generator will activate in the event that the power will fail. - Correct :
A backup generator will activate in the event that the power fails.
in case : C'est une distinction de sens critique. In case est pour la précaution (prendre une mesure *avant* qu'un problème ne survienne), tandis que in the event that est pour la contingence (une réponse *si* un problème survient).- Exemple
in case:I'll take an umbrella in case it rains.(Je prends le parapluie maintenant, par précaution, car il pourrait pleuvoir plus tard. L'action précède la pluie). - Exemple
in the event that:In the event that it rains, the match will be cancelled.(L'annulation n'est pas une précaution, c'est la conséquence directe si la pluie survient. C'est une réponse).
in the event that d'autres structures conditionnelles pour ne pas paraître trop formel là où ce n'est pas nécessaire.If | Neutre / Standard | Usage courant, quotidien, polyvalent. |In case | Informel / Standard | Précaution, préparation face à une éventualité. |In the event that | Très formel | Contrats, protocoles, procédures, risques. |Should (inversion) | Formel | Littéraire ou administratif (Should you require help...). |Should you require... est une alternative encore plus formelle à In the event that you require.... Elle est très utilisée dans les courriels de service client de haut niveau ou dans les manuels d'utilisation. Cependant, in the event that est plus polyvalent car il peut être utilisé avec n'importe quel verbe sans nécessiter d'inversion sujet-verbe.in the event that avec le conditionnel ?if, la proposition subordonnée ne doit pas contenir de verbe au conditionnel ou au futur. La conséquence dans la proposition principale peut être au conditionnel (si vous faites un second conditionnel), mais la partie introduite par in the event that doit rester au présent simple.in the event that et in the event of ?In the event that est suivi d'une proposition (sujet + verbe), tandis que in the event of est une préposition suivie d'un nom ou d'un gérondif. Exemple : In the event of rain, the match will be cancelled (plus court et très courant).if ou in case pour ne pas paraître distant ou froid.Structure of 'In the event that'
| Conjunction | Subject | Verb (Present Simple) | Result Clause |
|---|---|---|---|
|
In the event that
|
the alarm
|
sounds
|
exit the building.
|
|
In the event that
|
it
|
rains
|
the game is cancelled.
|
|
In the event that
|
you
|
lose
|
your key, call me.
|
|
In the event that
|
he
|
does not pay
|
he must leave.
|
|
In the event that
|
the CEO
|
should resign
|
we will vote.
|
Meanings
A complex conjunction used to introduce a condition that might happen in the future, typically implying a prepared response or a formal consequence.
Legal/Contractual Contingency
Specifying what happens if a contract is breached or a specific legal condition is met.
“In the event that the tenant fails to pay rent, the lease shall be terminated.”
“In the event that the goods are damaged, the seller will provide a full refund.”
Emergency Procedures
Instructions for what to do during rare but serious incidents.
“In the event that the cabin pressure drops, oxygen masks will fall from the ceiling.”
“In the event that you hear a fire alarm, please exit the building via the stairs.”
Professional Planning
Discussing business 'Plan B' scenarios in meetings or emails.
“In the event that the shipment is delayed, we should notify the client by noon.”
“In the event that we exceed our budget, we will need to cut marketing costs.”
Reference Table
| Structure | Signification | Formalité | Exemple |
|---|---|---|---|
|
In the event that + S + V(présent)
|
Si une situation spécifique se produit
|
Formel
|
`In the event that` the system fails, restart it.
|
|
S + will/may/should + V + in the event that + S + V(présent)
|
Une action se produira si la situation se présente
|
Formel
|
You `will be refunded in the event that` your flight is cancelled.
|
|
If + S + V(présent)
|
Condition normale
|
Informel/Neutre
|
`If` it rains, we'll stay inside.
|
Spectre de formalité
In the event that a fire breaks out, please exit via the nearest stairwell. (Safety instruction)
If there is a fire, please use the stairs to leave. (Safety instruction)
If it catches fire, get out fast! (Safety instruction)
If it's blazing, bail! (Safety instruction)
In The Event That : Concepts Clés
Signification
- If (formel) Formal 'If'
- Si cela se produit Contingency
- Quand/si (sérieux) Serious Condition
Usage
- Contrats Legal Documents
- Plans d'urgence Safety Protocols
- Instructions formelles Official Directives
Structure
- In the event that + S + V(présent) Clause Structure
- Clause principale (futur) Result Clause
Contraste
- `If` (décontracté) Everyday conditional
- `In case` (précaution) Similar, but subtly different
In The Event That vs. If vs. In Case
Dois-je utiliser 'In The Event That' ?
Le contexte est-il formel (ex: politique, contrat, communication officielle) ?
Spécifies-tu une condition précise qui, si elle se produit, nécessite une action définie ?
Où 'In The Event That' s'épanouit
Légal & Officiel
- • Contrats
- • Politiques d'entreprise
- • Termes & Conditions
Planification d'urgence
- • Procédures d'évacuation
- • Protocoles de catastrophe
- • Plans de contingence
Affaires & Admin
- • Emails formels
- • Chartes de projet
- • Accords de service
Manuels techniques
- • Guides de dépannage
- • Notes de sécurité du système
- • Manuels d'utilisation
Exemples par niveau
In the event that you are late, call me.
If you are late, call me.
In the event that it is cold, wear a coat.
If it is cold, wear a coat.
In the event that you need help, ask a teacher.
If you need help, ask a teacher.
In the event that the bus is full, wait for the next one.
If the bus is full, wait.
In the event that the hotel is full, we will find another room.
If the hotel is full, we'll find another.
In the event that you do not have a ticket, you cannot enter.
If you don't have a ticket, you can't enter.
In the event that the rain stops, we can play tennis.
If the rain stops, we can play.
In the event that the computer breaks, call the office.
If the computer breaks, call the office.
In the event that the meeting is cancelled, I will send an email.
If the meeting is cancelled, I'll email.
In the event that you lose your passport, contact the embassy.
If you lose your passport, call the embassy.
In the event that the product is faulty, you can return it.
If the product is broken, you can return it.
In the event that no one answers, please leave a message.
If no one answers, leave a message.
In the event that the candidate fails to appear, the interview will be rescheduled.
If the candidate doesn't show up, we'll reschedule.
In the event that the software requires an update, the system will notify you.
If the software needs an update, you'll be notified.
In the event that the company goes bankrupt, the assets will be sold.
If the company fails, assets are sold.
In the event that the alarm is triggered, security will arrive in five minutes.
If the alarm goes off, security comes.
In the event that the primary server should fail, the secondary server takes over.
If the main server fails, the backup starts.
In the event that the terms are not met, the contract is null and void.
If terms aren't met, the contract is dead.
In the event that the witness refuses to testify, the prosecution may struggle.
If the witness won't talk, the case is hard.
In the event that the currency fluctuates wildly, we will hedge our investments.
If the money changes value, we'll protect ourselves.
In the event that the geopolitical climate deteriorates, we must reassess our supply chain.
If politics get worse, we change our supply.
In the event that the findings are deemed inconclusive, further funding will be withheld.
If results are unclear, no more money.
In the event that the monarch is unable to perform their duties, a regent is appointed.
If the King/Queen can't work, a regent takes over.
In the event that the merger should be blocked by regulators, the stock price will plummet.
If the merger is stopped, stocks will fall.
Facile à confondre
Learners use 'that' with nouns or 'of' with clauses.
Both are formal, but inversion is even more formal and omits 'if' or 'in the event that'.
'In case' is used for precautions (doing something *before*), whereas 'in the event that' is for reactions (doing something *after*).
Erreurs courantes
In the event that rain, stay inside.
In the event that it rains, stay inside.
In the event of it rains...
In the event that it rains...
In the event that you will be late...
In the event that you are late...
In the event that you hungry...
In the event that you are hungry...
In the event that the bus don't come...
In the event that the bus doesn't come...
In the event that fire...
In the event of fire...
In the event that you are needing help...
In the event that you need help...
In the event that the meeting would be cancelled...
In the event that the meeting is cancelled...
In the event that you forgot your password...
In the event that you forget your password...
In the event that it may rain...
In the event that it rains...
In the event that the company should to fail...
In the event that the company should fail...
Structures de phrases
In the event that ___, please ___.
What should I do in the event that ___?
In the event that the ___ should ___, we will ___.
The contract states that in the event that ___, the ___ is ___.
Real World Usage
In the event that the cabin loses pressure, masks will drop.
In the event that the buyer defaults, the deposit is forfeited.
In the event that I am out of the office, please contact Sarah.
In the event that you hear the alarm, do not use the elevator.
In the event that you violate these terms, your account may be banned.
In the event that the train is delayed, we apologize for the inconvenience.
Pense « Préparation »
In the event that the system fails, we have a manual override procedure.
Évite « Will » dans la Clause
In the event that it rains, the event will be moved indoors.
Utilise pour la Clarté, Pas pour le Chic
In the event that you cannot attend, please notify us 48 hours in advance.
Le Contexte, C'est le Roi
In the event that the proposal is accepted, we will proceed with the next steps.est parfait dans un e-mail professionnel.
Placement de la Virgule
In the event that we face delays, we will notify you.Pas de virgule si c'est au milieu, comme dans :
We will notify you in the event that we face delays.
Smart Tips
Swap 'if' for 'in the event that' to sound more professional and prepared.
Change 'of' to 'that' to make the grammar correct.
Add the word 'should' after the subject.
Use 'In the event of' for short signs and 'In the event that' for detailed manuals.
Prononciation
The 'that' reduction
In natural speech, 'that' is often reduced to a schwa sound /ðət/.
Stress pattern
The primary stress is on the second syllable of 'event'.
Rising-Falling
In the event that it rains (rising), we'll stay home (falling).
The condition has a rising pitch to show it's not finished, the result falls.
Mémorise-le
Moyen mnémotechnique
Remember the 'T' in 'That' stands for 'Total sentence' (Subject + Verb).
Association visuelle
Imagine a thick, dusty legal book. On the first page, in big gold letters, it says 'IN THE EVENT THAT'. This helps you associate the phrase with formal, official rules.
Rhyme
In the event that things go wrong, the formal 'if' will make you strong.
Story
A lawyer is preparing for a storm. He doesn't say 'If it rains.' He says, 'In the event that precipitation occurs, we shall deploy the umbrellas.' He is ready for any contingency.
Word Web
Défi
Write three emergency instructions for your office or home using 'In the event that'.
Notes culturelles
Very common in formal British public announcements (e.g., on the Tube or at train stations). It reflects a cultural preference for formal politeness in official settings.
Standard in 'Legalese'. Americans use this to make contracts sound ironclad and professional.
Used globally in English-speaking offices to sound objective and less personal than 'if'.
Derived from the Latin 'eventus' (occurrence/outcome). The phrase 'in the event' appeared in English in the 1600s.
Amorces de conversation
In the event that you won the lottery tomorrow, what would be your first purchase?
In the event that your flight is delayed for 10 hours, how do you spend the time?
In the event that you were offered a job in a different country, would you take it?
What should a citizen do in the event that they witness a crime?
Sujets d'écriture
Erreurs courantes
Test Yourself
In the event that the projector ___ down, we have a backup presentation ready.
Find and fix the mistake:
In the event that you will be late, please inform us by phone.
Traduis en anglais : 'En caso de que la alarma suene, evacuen el edificio.'
Answer starts with: ["I...
Choisis la phrase correcte :
Score: /4
Exercices pratiques
8 exercisesIn the event ___ the power goes out, use the flashlight.
In the event ___ a fire, do not use the elevators.
Find and fix the mistake:
In the event that it will rain, the concert is cancelled.
If the shipment is delayed, we will call you.
'In the event that' is more formal than 'if'.
Manager: 'What is our plan ___ the client rejects the proposal?'
Select the correct option.
event / that / in / the / fails / system / the / restart / it
Score: /8
Practice Bank
12 exercisesThe company policy states that `in the event that` an employee ___ company property, disciplinary action will be taken.
We will provide a full refund in the event of that you are not satisfied.
Traduis en anglais : 'Si el servidor principal falla, se activará el sistema de respaldo.'
Quelle affirmation utilise correctement le conditionnel formel ?
Arrange ces mots pour former une phrase :
Associe les expressions conditionnelles à leurs résultats appropriés :
`In the event that` the conference ___ rescheduled, all registered participants will be notified.
If you need anything, just call me, in the event that.
Traduis en anglais : 'Si hubiera un problema con la entrega, por favor, avísenos de inmediato.'
Quelle phrase serait la plus appropriée pour une politique d'entreprise ?
Arrange ces mots pour former une phrase :
Associe le début de la phrase à sa fin logique :
Score: /12
FAQ (8)
Technically yes, but it would sound very strange and sarcastic. Stick to `if` for texting.
No. `In case` is for preparation (I'll take a coat in case it rains). `In the event that` is for a reaction (In the event that it rains, we will go inside).
Yes, if the 'in the event that' clause comes first, use a comma before the main clause. Example: `In the event that it rains, we will cancel.`
No, just like with `if`, you should use the present simple to talk about the future. Say `In the event that he arrives`, not `In the event that he will arrive`.
`In the event of` is shorter and used with nouns (In the event of fire). It's very common on signs where space is limited.
Yes, it is very common in American legal documents and formal business settings.
Adding `should` (In the event that it should rain) makes the event sound even less likely and more formal.
Yes, it is perfectly appropriate for academic writing when discussing hypothetical conditions or results.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
En caso de que
Spanish uses the subjunctive; English uses the present simple.
Au cas où
French uses the conditional mood; English uses present simple.
Im Falle, dass
Very similar in usage and register.
万が一 (Man'gaichi)
Japanese emphasizes the extreme unlikelihood more than the English phrase.
في حال (Fi hal)
Arabic can use it with both nouns and clauses more flexibly.
万一 (Wànyī)
Chinese 'Wànyī' is often used for bad things, while English can be neutral.
Learning Path
Prerequisites
Vidéos associées
Related Grammar Rules
Premier Conditionnel: Unless = If Not
### Overview Maîtriser les structures conditionnelles est une étape charnière pour tout apprenant de niveau B1. C'est l...
Conditionnel Zéro: Habitudes et Routines
### Overview Le `Zero Conditional` est une structure fondamentale de la langue anglaise, particulièrement lorsqu'il s'a...
Can: Exprimer la capacité (Can)
### Vue d'ensemble Le verbe modal `can` est un pilier de la communication en anglais, principalement utilisé pour expri...
Conditionnels mixtes : Action passée, résultat présent (Type 2)
### Overview Les conditionnels mixtes sont un outil sophistiqué de la grammaire anglaise, essentiels pour atteindre un...
Suppose & Supposing : Le jeu du 'Et si'
### Overview En tant que francophones, nous utilisons souvent des structures comme « si jamais » ou « imaginons que » p...
