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On and the passive: choosing sentence focus

CEFR B1

What you will learn

  • Interpret on as people in general, an unidentified agent or colloquial nous while keeping the verb singular.
  • Build the passive in several tenses and decide whether the text focuses on the agent, action or affected entity.

Before you start

  • Recognise the vocabulary and forms shown in this lesson’s key idea and paradigm.

The idea

“On” and the passive can describe the same event but organise information differently: one keeps an action with an implicit human agent, while the other turns the affected entity into the subject.

“On” is always a third-person singular grammatical subject: “on parle”, “on va”, “on a fermé”. It can mean people in general, an unidentified person or colloquial “nous”. Context, not the verb form, identifies the referent.

When “on” stands for a known group, an adjective or participle can show its number and gender: two women can say “on est arrivées”. The auxiliary remains singular —“on est”— even though the participle is plural.

The passive uses “être” in the required tense plus a participle agreeing with the subject: “la route est fermée”, “la passerelle a été réparée”. When relevant, the agent is normally introduced by “par”.

Choice depends on focus. “On a fermé la route” foregrounds the action and leaves the responsible people implicit. “La route a été fermée” presents the road and its state or an administrative fact. French also has pronominal constructions such as “ça se fait”, so do not translate every impersonal-looking form automatically with “on”.

Working paradigm

FocusStructureExample
acción/personas implícitason + verbe actif singulieron a réparé la passerelle
entidad afectadasujet + être + participela passerelle a été réparée
agente relevantepassif + par + agentla passerelle a été réparée par des bénévoles
grupo conocidoon + verbe singulier + accord du prédicatLina et moi, on est arrivées

The verb form with on does not change; visible agreement may appear in a predicate adjective or participle.

How it sounds

  • La passerelle a été réparée par des bénévoles.The new focus is “la passerelle”. The tense is the perfect: “a été”. “Passerelle” is feminine singular: “réparée”. The agent is informative and stays with “par”.
On the left several figures repair a bridge; on the right the finished bridge fills the foreground while the figures recede.
The same event can foreground those acting or the bridge receiving the action.

Check objective 1

View the illustration

A proposed answer is “parlent” for this case: “Ici, on parlent français et italien.”. Choose the only valid form.

Choose an answer

Answer available without interaction

Answer: parle — On is a third-person singular subject even when it includes many people.

On is a third-person singular subject even when it includes many people.

Check objective 2

View the illustration

A proposed answer is “ont réparé” for this case: “Des techniciennes ont réparé les machines. → Les machines ont réparé par des techniciennes.”. Choose the only valid form.

Choose an answer

Answer available without interaction

Answer: ont été réparées — Passive perfect: “ont été” plus feminine plural participle “réparées”.

Passive perfect: “ont été” plus feminine plural participle “réparées”.

When it doesn't hold

What breaks the rule, said out loud. Hiding it is what makes you feel cheated in the exam.

  • Action with implicit agentOn a fermé la route.
  • Result or announcementLa route a été fermée.
  • Habitual property with seCe tissu se lave facilement.

What your own language pushes you to say

Wrong On sont arrivées à midi.

Right On est arrivées à midi.

When on represents several women, the participle may be feminine plural, but the verb remains third-person singular. A plural referent does not make the grammatical subject plural.

Challenge: apply both rules

Solve both cases and justify each choice: 1) Una propuesta responde «parlent» a este caso: «Ici, on parlent français et italien.». Elige la única forma válida. 2) Una propuesta responde «ont réparé» a este caso: «Des techniciennes ont réparé les machines. → Les machines ont réparé par des techniciennes.». Elige la única forma válida.

Answer available without interaction
  • Interpret on as people in general, an unidentified agent or colloquial nous while keeping the verb singular.
  • Build the passive in several tenses and decide whether the text focuses on the agent, action or affected entity.

Answer: parle · ont été réparées

On is a third-person singular subject even when it includes many people. Passive perfect: “ont été” plus feminine plural participle “réparées”.

Curriculum alignment and sources

Continue along this corridor

Practise this: on, the French way to be impersonalFrench subjunctive: forms, triggers and contrast with the indicativePast participle agreement: auxiliary, object and positionReported speech: person, tense and viewpointSi clauses: real, imagined and past conditionsSpoken and written French: adapting register