Passif avec Modaux : Faire avancer les choses
précise, formelle et polie, en mettant l'accent sur l'action elle-même. C'est ta botte secrète pour une expression objective et indirecte !
Grammar Rule in 30 Seconds
Use modal passives to focus on the action's necessity or possibility without needing to mention who is performing it.
- Present/Future: Use 'Modal + be + Past Participle' (e.g., 'It must be finished').
- Past: Use 'Modal + have been + Past Participle' (e.g., 'It should have been done').
- Negative: Place 'not' after the modal (e.g., 'It cannot be changed').
Overview
We must finish this report, l'utilisation du passif avec un modal (This report must be finished) apporte une touche de sophistication et d'objectivité indispensable dans un contexte de haut niveau.You should fix this error (ce qui peut paraître accusateur), tu diras This error should be fixed. On déplace l'attention de la personne vers la tâche à accomplir.must, can, should, might, etc.) avec la structure du passif pour que tu puisses naviguer dans les rapports, les réunions et les essais avec l'aisance d'un locuteur natif.- Actif :
The manager (sujet) must approve (modal + verbe) the budget (objet). - Passif :
The budget (sujet) must be approved (modal + be + participe passé).
be. En anglais, après un modal, le verbe qui suit doit toujours être à sa forme de base (l'infinitif sans to).be et jamais is, are ou was.-ed. Pour les irréguliers, c'est la troisième colonne de tes tableaux de verbes (par exemple, done, written, taken).It can be done.(C'est possible.)It must be done.(C'est obligatoire.)It should be done.(C'est conseillé/attendu.)It might be done.(C'est une éventualité lointaine.)
be reste be.Sujet + Modal + be + Past Participle (V3)The project | must | be | completed | The project must be completed. |The files | can | be | found | The files can be found online. |Changes | should | be | made | Changes should be made soon. |not (ou sa contraction) après le modal. Attention à la place de not : il se glisse entre le modal et be.Sujet + Modal + not + be + Past ParticipleThe meeting cannot be postponed.(On ne peut pas reporter la réunion.)The secret should not be shared.(Le secret ne devrait pas être partagé.)
Modal + Sujet + be + Past Participle ?Can the deadline be extended?(La date limite peut-elle être repoussée ?)Should the staff be informed?(Le personnel devrait-il être informé ?)
have to ou ought to, le principe reste le même, mais fais attention à la conjugaison de have :The car has to be repaired.(La voiture doit être réparée.)The documents ought to be signed.(Les documents devraient être signés.)
The software must be updated.
- Au lieu de dire :
You must correct these mistakes.(Très direct, presque agressif). - Dis :
These mistakes must be corrected.(Professionnel, neutre, focalisé sur la solution).
Safety goggles must be worn at all times.Applications may be submitted via email.
The data could be misinterpreted if we are not careful.(Les données pourraient être mal interprétées...)A solution might be found during the workshop.(Une solution pourrait être trouvée...)
It can be argued that...(On peut soutenir que...)The results should be analyzed in context.(Les résultats devraient être analysés dans leur contexte.)
be- Faux :
The work must finished. - Juste :
The work must be finished. - Pourquoi ? Un modal a besoin d'un verbe à l'infinitif. Sans
be, ta phrase n'a pas de verbe principal fonctionnel.
be après le modal- Faux :
The report can is sent.ouIt must was done. - Juste :
The report can be sent./It must be done. - Pourquoi ? C'est une règle d'or en anglais : après un modal, c'est l'infinitif sans
to(bare infinitive).Beest la seule option.
- Faux :
The letter should be wrote. - Juste :
The letter should be written. - Pourquoi ? Le passif exige toujours la forme V3.
Wroteest le passé simple,writtenest le participe passé.
Must et Should au passifThe tax must be paid.(Obligation légale, sinon amende).The tax should be paid.(Conseil moral, ou attente logique).
not- Faux :
The task must be not forgotten. - Juste :
The task must not be forgotten. - Pourquoi ? La négation porte sur le modal, elle se place donc immédiatement après lui.
The report is sent. | Present Simple Passive | Fait habituel ou état actuel. |The report must be sent. | Modal Passive | Nécessité / Obligation future. |The report was sent. | Past Simple Passive | Action terminée dans le passé. |We can solve this problem. | This problem can be solved. |- Présent :
It should be done.(Ça devrait être fait maintenant). - Passé :
It should have been done.(Ça aurait dû être fait - mais ça ne l'a pas été).
Modal + have been + V3. C'est le stade ultime de cette règle.get à la place de be ?get-passive (ex: It might get broken). Cependant, c'est beaucoup plus informel. Dans un e-mail à ton patron ou dans un examen comme l'IELTS ou le Cambridge, tiens-toi au be. Get est parfait pour une discussion entre amis au pub.can be ou could be ?Can be exprime une possibilité réelle ou théorique générale (It can be cold in London). Could be est plus hypothétique ou plus poli (This could be a problem). Au passif, could be est souvent préféré pour suggérer quelque chose avec tact.It shouldn't be allowed au lieu de It should not be allowed. C'est naturel et fluide.by someone à la fin ?The law must be signed by the President. (Ici, c'est important). Mais évite les évidences comme The cake must be eaten by us.Modal Passive Formation
| Timeframe | Modal | Auxiliary | Verb Form | Example |
|---|---|---|---|---|
|
Present/Future
|
can/must/should
|
be
|
Past Participle (V3)
|
It can be done.
|
|
Past
|
could/should/must
|
have been
|
Past Participle (V3)
|
It should have been done.
|
|
Negative (Pres)
|
cannot/must not
|
be
|
Past Participle (V3)
|
It must not be done.
|
|
Negative (Past)
|
might not
|
have been
|
Past Participle (V3)
|
It might not have been done.
|
|
Question
|
Should
|
Subject + be
|
Past Participle (V3)
|
Should it be done?
|
Common Contractions
| Full Form | Contracted Form | Usage Note |
|---|---|---|
|
cannot be
|
can't be
|
Very common in speech
|
|
should not be
|
shouldn't be
|
Common in advice
|
|
must not be
|
mustn't be
|
Common in British English
|
|
should have been
|
should've been
|
Spoken English only
|
Meanings
The modal passive is used to express necessity, possibility, permission, or obligation regarding an action where the receiver of the action is the subject.
Obligation and Necessity
Expressing that an action is required to be performed on an object.
“Safety goggles must be worn at all times in the lab.”
“The taxes should be paid by the end of the month.”
Possibility and Ability
Expressing what can or could happen to an object.
“The problem could be solved with more funding.”
“This software can be downloaded for free.”
Past Regret or Deduction
Reflecting on actions that were or weren't performed in the past.
“The mistake should have been caught during the review.”
“The package must have been delivered to the wrong address.”
Reference Table
| Modal | Signification | Exemple Actif | Exemple Passif |
|---|---|---|---|
|
can
|
Capacité/Possibilité
|
They can solve the problem.
|
The problem can be solved.
|
|
could
|
Possibilité/Suggestion
|
We could reschedule the meeting.
|
The meeting could be rescheduled.
|
|
may
|
Permission/Possibilité
|
You may use this tool.
|
This tool may be used.
|
|
might
|
Faible Possibilité
|
She might send the email.
|
The email might be sent.
|
|
must
|
Obligation/Nécessité
|
Students must read the book.
|
The book must be read.
|
|
should
|
Conseil/Recommandation
|
You should review the report.
|
The report should be reviewed.
|
|
will
|
Certitude Future (passif)
|
They will complete the task.
|
The task will be completed.
|
|
would
|
Résultat Hypotétique
|
Someone would enjoy this.
|
This would be enjoyed.
|
Spectre de formalité
The report must be finalized by the close of business. (Workplace deadline)
The report should be finished soon. (Workplace deadline)
The report's gotta be done. (Workplace deadline)
This doc needs to be wrapped up ASAP. (Workplace deadline)
Le Passif avec Modaux : Le Concept Clé
Éléments Clés
- Verbe Modal Can, Should, Must, etc.
- be Toujours 'be'
- Participe Passé Forme V3
Objectif Principal
- Focaliser sur l'Action Pas sur l'acteur
- Agent Inconnu Ou sans importance
- Politesse Requêtes/suggestions indirectes
Contextes d'Utilisation
- Instructions Règles, procédures
- Possibilités Résultats futurs
- Conseils Recommandations
Voix Active vs. Voix Passive avec Modaux
Dois-je utiliser le Passif avec Modaux ?
L'acteur de l'action est-il inconnu ou sans importance ?
As-tu besoin d'exprimer une possibilité, une nécessité ou un conseil ?
Veux-tu paraître plus formel ou objectif ?
Significations des Modaux au Passif
Obligation
- • Must be done
- • Has to be done
Possibilité
- • Can be done
- • Could be done
- • May be done
- • Might be done
Conseil
- • Should be done
- • Ought to be done
Futur
- • Will be done
Exemples par niveau
The car can be washed.
El coche se puede lavar.
The food must be eaten.
La comida debe ser comida.
The door should be closed.
La puerta debería estar cerrada.
Can the window be opened?
¿Se puede abrir la ventana?
The bill must be paid now.
La cuenta debe pagarse ahora.
The letters can be sent tomorrow.
Las cartas pueden enviarse mañana.
The room should be cleaned every day.
La habitación debe limpiarse todos los días.
This game cannot be played alone.
Este juego no se puede jugar solo.
The results might be announced later today.
Los resultados podrían anunciarse más tarde hoy.
All staff members must be informed of the change.
Todos los miembros del personal deben ser informados del cambio.
The bridge could be built in two years.
El puente podría construirse en dos años.
Should the meeting be rescheduled?
¿Debería reprogramarse la reunión?
The report should have been submitted yesterday.
El informe debería haber sido entregado ayer.
The software may be updated automatically.
El software puede actualizarse automáticamente.
The suspect must have been seen by someone.
El sospechoso debe haber sido visto por alguien.
These rules ought to be followed strictly.
Estas reglas deberían seguirse estrictamente.
The proposal could have been more clearly articulated.
La propuesta podría haber sido articulada más claramente.
It must be ensured that all safety protocols are met.
Debe asegurarse de que se cumplan todos los protocolos de seguridad.
The data might have been misinterpreted by the researchers.
Los datos podrían haber sido malinterpretados por los investigadores.
Such behavior will not be tolerated in this institution.
Tal comportamiento no será tolerado en esta institución.
The nuances of the contract ought to have been more thoroughly scrutinized.
Los matices del contrato deberían haber sido escrutados más a fondo.
The artifacts may well have been being moved when the fire broke out.
Es muy posible que los artefactos estuvieran siendo trasladados cuando estalló el incendio.
It shall be deemed that the agreement is null and void.
Se considerará que el acuerdo es nulo y sin valor.
The project could not have been brought to fruition without your support.
El proyecto no podría haber llegado a buen término sin su apoyo.
Facile à confondre
Learners often use the active form when they mean the passive, especially with 'should have'.
Mixing up the perfect active and perfect passive.
Using 'must not' for logical impossibility.
Erreurs courantes
It must done.
It must be done.
The car can washed.
The car can be washed.
It can be do.
It can be done.
Must be it done?
Must it be done?
It should be finish.
It should be finished.
The bill must be pay.
The bill must be paid.
It not can be done.
It cannot be done.
It should have done.
It should have been done.
The work might been finished.
The work might have been finished.
It must be being done.
It must be done.
The data should have been being analyzed.
The data should have been analyzed.
It ought to been seen.
It ought to have been seen.
The results can be interpreted as...
The results could be interpreted as...
It must not have been done.
It can't have been done.
Structures de phrases
The ___ must be ___ by ___.
It could be argued that ___.
The ___ should have been ___ earlier.
Under no circumstances may the ___ be ___.
Real World Usage
The files should be uploaded to the shared folder by EOD.
The deposit shall be returned within 30 days.
The bracket must be secured with four screws.
The results could be interpreted as a shift in consumer behavior.
Baggage must not be left unattended.
Your password can be reset using the link below.
N'oublie jamais le 'be' !
The documents must be signed.
Attention au Participe Passé (V3) !
The letter should be written.
Le 'by' avec parcimonie
The decision was made by the board.vs
The decision was made.
Le Contexte, c'est le Roi !
The dishes should be done.(on sait qui)
Souplesse avec les adverbes
might be easily understood). Ça ajoute de la nuance et de la précision à ton expression !Smart Tips
Change 'I must finish this' to 'This must be finished'. It sounds less like a personal struggle and more like a professional requirement.
Use 'should have been' to focus on the task. It reduces conflict.
Check if there is a modal before it. If so, it's a modal passive!
Use 'could be interpreted' or 'might be seen' to avoid sounding too aggressive with your claims.
Prononciation
Reduction of 'be'
In the phrase 'must be done', the word 'be' is often unstressed and shortened.
Contraction of 'have been'
In 'should have been', 'have been' often sounds like 'av-bin' or 'əv bɪn'.
Stress on the Modal
It MUST be done! (Falling arrow on MUST)
Emphasizing the urgency or necessity.
Mémorise-le
Moyen mnémotechnique
Remember 'MBP': Modal + Be + Participle. It's the 'Most Basic Passive' for modals!
Association visuelle
Imagine a robot (the object) being repaired. The robot doesn't fix itself; it 'must be fixed' by a factory arm. The focus is on the robot, not the arm.
Rhyme
If a modal is what you see, don't forget to add the 'be'!
Story
A detective arrives at a crime scene. He says, 'The safe must have been opened from the inside. The guards should have been alerted.' He focuses on the objects and actions because the criminal is unknown.
Word Web
Défi
Look around your room. Find 3 things that 'should be cleaned' and 2 things that 'could be moved'. Say them out loud.
Notes culturelles
British speakers use 'mustn't be' more frequently than Americans, who prefer 'can't be' or 'shouldn't be' for prohibitions.
Modal passives are the standard for 'polite distancing'. It allows a manager to criticize a process without criticizing a person.
The modal 'shall' is almost exclusively used in legal passives to indicate a mandatory requirement.
The passive voice in English evolved from Old English 'weorthan' (to become) and 'beon' (to be). Modals were originally full verbs with their own meanings.
Amorces de conversation
What is one thing in your city that should be improved?
Think of a famous historical event. What should have been done differently?
If you were the president, what laws would be changed immediately?
Can a person's character be judged by their clothes?
Sujets d'écriture
Erreurs courantes
Test Yourself
The new rules ___ reviewed by the committee soon.
Find and fix the mistake:
The report should be write by tomorrow morning.
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Score: /3
Exercices pratiques
8 exercisesThe report ___ (must / finish) by tomorrow morning.
Find and fix the mistake:
The car should been fixed yesterday.
Which sentence is most objective?
The stars...
In a modal passive, the word 'be' changes to 'am/is/are' depending on the subject.
A: Why is the office so messy? B: I don't know, it ___ (should / clean) last night.
Select the correct form.
Must be done / Could be done / Should have been done
Score: /8
Practice Bank
13 exercisesThe payment ___ processed by the end of the week.
Her application could be approve soon.
Choose the correct sentence:
Translate into English: 'El problema puede ser resuelto.'
Arrange these words into a sentence:
Match the active sentences with their correct passive modal equivalents:
This sensitive information ___ not be shared outside the company.
A decision will being made by next week.
Which sentence is correct?
Translate into English: 'Se podría discutir en la reunión.'
Rearrange these words into a sentence:
Your reservation ___ be confirmed shortly via email.
Match the modal with its implied context:
Score: /13
FAQ (8)
Yes, in informal English. For example, 'It needs to get done' instead of 'It needs to be done'. However, 'be' is much more common in writing.
'Must not be' is for rules (prohibition), while 'cannot be' is for things that are impossible.
Use the word `by` at the end. 'The law must be signed `by the President`.'
Yes, they are almost identical in meaning, but 'ought to' is slightly more formal or moralistic.
Technically yes (modal passive continuous), but it is very rare and usually replaced by simpler forms like 'might be happening'.
To sound objective. Scientists care about the experiment, not the person holding the test tube. 'The liquid must be heated' sounds more scientific than 'I must heat the liquid'.
No, you are missing the word `have`. It must be 'It should `have` been done'.
When the 'doer' of the action is the most important part of the sentence or when you want to be very direct and personal.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Pasiva con estar/ser o Pasiva Refleja
English uses 'be' + V3, while Spanish often uses 'se' + active verb.
Voix passive avec les modaux
French uses 'on' more frequently than English uses the passive.
Passiv mit Modalverben
German puts the past participle and 'werden' at the end of the sentence.
助動詞 + 受動態 (reru/rareru)
Japanese uses verb suffixes rather than auxiliary verbs like 'be'.
المبني للمجهول مع الأفعال الناقصة
Arabic uses internal vowel changes (morphology) rather than a 'be' auxiliary.
被 (bèi) + Modal
Chinese lacks verb conjugation and the 'be' auxiliary for passives.
Learning Path
Prerequisites
Learn These First
Voix Passive : Formation de Base (be + V3)
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Verbes Modaux Anglais: can, should, must
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