What is an impersonal pronoun in French?

A subject pronoun that refers to nobody and nothing, and exists only because French verbs need a subject. Il pleut, il faut, il y a, and il est tard all use one. Ce, ça, and on do similar work in slightly different ways.

How do I know whether il means he or it?

Ask whether the sentence could answer the question who. Il est parti has a possible answer, so il is a person. Il est tard has none, so il is a placeholder. Verbs like falloir, pleuvoir, and s'agir are always impersonal.

Why is il y a singular even with plural nouns?

Because the verb agrees with the placeholder il, not with what follows. So il y a trois personnes, il y a beaucoup de monde, il y avait des centaines de gens. Ils y ont does not exist.

What's the difference between il est important de and c'est important de?

Nothing in meaning. Il est important de is the careful written form, and c'est important de is what people say. Both take de before the infinitive: il est important de venir, c'est important de venir.

Is on an impersonal pronoun?

It behaves like one, since it takes a singular verb and names nobody in particular, but it does refer to people. That is why on can replace an English passive: on m'a volé mon sac, my bag was stolen. Truly impersonal il can never do that.

French grammar · Intermediate

French Impersonal Pronouns: Il, Ce, Ça, and On

Written by Camille Laurent, Lead French Curriculum Editor · Reviewed May 2026

An impersonal pronoun fills the subject slot without referring to anybody. French uses il for weather, time, necessity, and existence, ce and ça to point at a situation, and on for people in general. All of them take a third-person singular verb, however many things the sentence is really about.

Il faut partir avant qu'il ne pleuve.

We need to leave before it rains.

What it is

A French verb cannot be conjugated without a subject, even when there is nothing in the world for that subject to name. Rain has no agent, so French installs a placeholder: il pleut. English does the same thing with it rains, and the two languages diverge mainly in how far French takes the idea.

Il pleut, il est tard, il faut rentrer. — It's raining, it's late, we have to go home.

How to spot it

Try asking who or what the pronoun refers to. If there is no possible answer, the pronoun is impersonal and the verb stays in the third person singular.

Il neige depuis ce matin. — It's been snowing since this morning.
Il est trois heures. — It's three o'clock.
Il y a trois personnes dans la salle. — There are three people in the room.
On parle français ici. — French is spoken here.

Il y a stays singular however many things follow it, which is the clearest sign that its il is a placeholder.

Impersonal Pronouns Quick Reference

Which impersonal pronoun does which job

Pronoun	Job	Example	English
il	weather	Il neige.	It's snowing.
il	clock time	Il est huit heures.	It's eight o'clock.
il	necessity	Il faut y aller.	We have to go.
il	existence	Il y a un problème.	There's a problem.
il	what something is about	Il s'agit d'un malentendu.	It's a misunderstanding.
ce	identifying something	C'est mon frère.	That's my brother.
ça	referring to a whole situation	Ça dépend.	It depends.
on	people in general	On dit qu'il part.	They say he's leaving.

Common Impersonal Pronouns Examples in French

The impersonal pronouns at work:

Il for Weather and Time

Il pleut depuis ce matin.: It's been raining since this morning.
Il fait très froid dehors.: It's very cold outside.
Il est déjà minuit.: It's already midnight.
Il est trop tard pour appeler.: It's too late to call.

Weather uses either a dedicated verb, as in il pleut, or il fait plus an adjective, as in il fait beau.

Il for Necessity and Judgement

Il faut réserver à l'avance.: You have to book in advance.
Il vaut mieux attendre demain.: It's better to wait until tomorrow.
Il est important de vérifier les dates.: It's important to check the dates.
Il paraît qu'elle déménage.: Apparently she's moving house.

Falloir and valoir mieux exist only in this impersonal form; there is no je faux or nous valons mieux.

Ce and Ça

C'est incroyable.: That's incredible.
Ce sont mes voisins.: Those are my neighbours.
Ça m'énerve.: That annoys me.
Ça sent bon dans la cuisine.: Something smells good in the kitchen.

Ce is the only impersonal subject that can go plural, in ce sont. Ça never changes.

On as an Impersonal Subject

On dit que c'est vrai.: They say it's true.
On m'a volé mon vélo.: My bike has been stolen.
On ne sait jamais.: You never know.
Ici, on ferme à dix-huit heures.: Here we close at six.

On takes a singular verb even when it clearly means several people, which is why it belongs on this list.

How the Impersonal Pronouns Work

The whole system exists to satisfy one requirement: a French verb must have a subject, whatever the sentence is about.

The Subject Slot Cannot Be Empty

French has no way to conjugate a verb without a subject in front of it. When nothing real qualifies, il steps in as a placeholder, which is where il pleut, il est tard, and il y a all come from.

Il gèle ce matin.

It's freezing this morning.

Every verb needs a subject.

The Verb Stays Third-Person Singular

The number of things involved has no effect on the verb, because the verb is agreeing with the placeholder rather than with the content. Il y a trois solutions keeps a singular a, and il manque deux pages keeps a singular manque.

Il manque deux pages à ce livre.

This book is missing two pages.

Singular verb, always.

Impersonal Il Is Never He

The same word covers both, so context has to separate them. Il est tard is it's late, while il est parti is he's left. The test is whether you could answer the question who, and with a placeholder you cannot.

Il est difficile de dire non.

It's difficult to say no.

No possible who → impersonal.

Il Est Takes De Before an Infinitive

The pattern is il est plus adjective plus de plus infinitive: il est facile de critiquer. When the same adjective refers back to something already mentioned, ce takes over instead: c'est facile.

Il est facile de critiquer, c'est plus dur de faire.

It's easy to criticise, it's harder to do.

il est + adjective + de + infinitive.

On Often Replaces a Passive

Where English reaches for the passive to avoid naming an agent, French frequently uses on with an active verb. On m'a dit is I was told, and on construit un pont is a bridge is being built.

On m'a dit que le magasin était fermé.

I was told the shop was closed.

on + active = English passive.

Common Mistakes with Impersonal Pronouns

Incorrect: Pleut beaucoup en novembre. — It rains a lot in November.

Correct: Il pleut beaucoup en novembre. — It rains a lot in November.

A French verb cannot stand without a subject. Even when nothing is doing the raining, the placeholder il has to be there.

Incorrect: Ce roman s'agit de la guerre. — This novel is about the war.

Correct: Dans ce roman, il s'agit de la guerre. — This novel is about the war.

S'agir only works with impersonal il, so it can never take a real subject. The topic has to be introduced with dans, or you switch verbs: ce roman parle de la guerre.

Incorrect: Il est un médecin. — He's a doctor.

Correct: Il est médecin. — He's a doctor.

A profession after être takes no article in French. If you want the article, the subject has to change too: c'est un médecin.

Incorrect: Il faut que je dois partir. — I have to leave.

Correct: Il faut que je parte. — I have to leave.

Il faut already carries the obligation, so devoir is redundant. Il faut que takes the subjunctive, giving je parte rather than je dois partir.

Il Est, C'est, and Il S'agit De

Three constructions cause most of the trouble, and each has a rule that resolves it cleanly.

Il est plus an adjective plus de

When the adjective is followed by an infinitive, the subject is il and the link is de.

Il est important de dormir suffisamment.: It's important to get enough sleep.
Il est difficile de choisir.: It's difficult to choose.
Il est inutile d'insister.: There's no point insisting.

In speech c'est important de dormir is extremely common and perfectly acceptable; il est belongs to careful writing.

C'est or il est with a noun

C'est goes with an article and a noun. Il est goes with a bare profession or nationality used as a label.

C'est un médecin très connu.: He's a very well-known doctor.
Il est médecin.: He's a doctor.
C'est ma sœur.: That's my sister.
Elle est française.: She's French.

Once an article or a possessive appears, you need c'est. Il est un médecin is not an option.

Il s'agit de

S'agir exists only with impersonal il. It cannot take a real subject, so the thing being described has to go elsewhere in the sentence.

Il s'agit d'une erreur de calcul.: It's a calculation error.
De quoi s'agit-il ?: What's it about?
Dans ce roman, il s'agit de la guerre.: This novel is about the war.

Ce roman s'agit de la guerre is a very common error. The book cannot be the subject of s'agir.

Impersonal Pronouns FAQs

What is an impersonal pronoun in French?: A subject pronoun that refers to nobody and nothing, and exists only because French verbs need a subject. Il pleut, il faut, il y a, and il est tard all use one. Ce, ça, and on do similar work in slightly different ways.
How do I know whether il means he or it?: Ask whether the sentence could answer the question who. Il est parti has a possible answer, so il is a person. Il est tard has none, so il is a placeholder. Verbs like falloir, pleuvoir, and s'agir are always impersonal.
Why is il y a singular even with plural nouns?: Because the verb agrees with the placeholder il, not with what follows. So il y a trois personnes, il y a beaucoup de monde, il y avait des centaines de gens. Ils y ont does not exist.
What's the difference between il est important de and c'est important de?: Nothing in meaning. Il est important de is the careful written form, and c'est important de is what people say. Both take de before the infinitive: il est important de venir, c'est important de venir.
Is on an impersonal pronoun?: It behaves like one, since it takes a singular verb and names nobody in particular, but it does refer to people. That is why on can replace an English passive: on m'a volé mon sac, my bag was stolen. Truly impersonal il can never do that.