What is a being verb in French?

A verb that links the subject to a description rather than to an action. The main ones are être, sembler, paraître, devenir, rester, demeurer, avoir l'air and passer pour. Whatever follows them describes the subject and agrees with it.

Why does the adjective agree after sembler?

Because it is describing the subject, not the verb. Elle semble fatiguée is really elle est fatiguée with a layer of doubt added, so the adjective takes the subject's gender and number exactly as it would after être.

How do I know whether to use bon or bien?

Bon is an adjective and follows a being verb: le repas est bon. Bien is an adverb and follows an action verb: il mange bien. If you could substitute être for the verb, you want bon.

Why is it ces fleurs sentent bon and not bonnes?

Because bon here is describing the smelling, not the flowers, so it is functioning as an adverb and stays invariable. The same happens in parler fort, coûter cher and voir grand.

Do being verbs take avoir or être in the past?

It varies. Être, sembler and paraître take avoir (elle a semblé surprise), while rester and devenir take être and agree with the subject (elle est devenue directrice). The verb family and the auxiliary are separate questions.

French grammar · Beginner

Action Verbs vs. Being Verbs in French: Why It Decides Your Adjectives

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

French sorts verbs into two families. Action verbs say what the subject does, and they are modified by adverbs: elle chante bien. Being verbs — être, sembler, paraître, devenir, rester and a few others — say what the subject is, and they are followed by an adjective that agrees with the subject: elle semble fatiguée. Choosing the wrong family is what produces elle semble fatiguement.

Elle travaille sérieusement, mais elle semble fatiguée.

She works conscientiously, but she seems tired.

What it is

The distinction sounds abstract until you notice what it controls. An action verb describes something happening, and anything you add about how it happens is an adverb, which never changes form. A being verb describes a state, and what you add describes the subject, so it is an adjective and has to agree in gender and number.

Il parle lentement. Il est lent. — He speaks slowly. He is slow.

How to spot it

Try replacing the verb with être. If the sentence still hangs together, the verb belongs to the being family and needs an adjective.

Elle paraît inquiète. — She looks worried. (= elle est inquiète)
Ils restent silencieux. — They remain silent. (= ils sont silencieux)
Elle marche lentement. — She walks slowly. (not: elle est lentement)
Le gâteau est devenu dur. — The cake has gone hard.

There are only about eight being verbs in French, so it is quicker to learn the list than to test each sentence.

Action vs. Being Verbs Quick Reference

The being verbs and what follows them

Verb	Meaning	Example
être	to be	elle est prête — she's ready
sembler	to seem	il semble triste — he seems sad
paraître	to appear	elle paraît jeune — she looks young
devenir	to become	ils sont devenus riches — they became rich
rester	to remain	restez calmes — stay calm
demeurer	to remain (formal)	elle demeure convaincue — she remains convinced
avoir l'air	to look	tu as l'air fatigué — you look tired
passer pour	to be regarded as	il passe pour honnête — he's regarded as honest

Common Action vs. Being Verbs Examples in French

The two families side by side, and what each one takes after it:

Action Verbs with Adverbs

Il conduit prudemment.: He drives carefully.
Elles chantent merveilleusement bien.: They sing wonderfully well.
Nous avons répondu rapidement.: We replied quickly.
Tu manges trop vite.: You eat too fast.

Adverbs never change form. Elles chantent bien, ils chantent bien, elle chante bien: bien is fixed.

Being Verbs with Adjectives

Elle est intelligente.: She's intelligent.
Ils semblent perdus.: They seem lost.
La soupe est devenue froide.: The soup has gone cold.
Nous sommes restées amies.: We remained friends.

The adjective agrees with the subject, not with anything else in the sentence: elles semblent perdues.

Being Verbs with a Noun

Mon père est médecin.: My father is a doctor.
Elle est devenue avocate.: She became a lawyer.
Il reste le meilleur joueur du club.: He remains the best player in the club.
Ça semble une bonne idée.: That seems like a good idea.

With a profession after être or devenir, French uses no article: il est professeur, not il est un professeur.

The Same Root, Two Families

Elle est heureuse.: She's happy.
Elle vit heureuse.: She lives happily.
Il paraît sûr de lui.: He seems sure of himself.
Le journal paraît le lundi.: The paper comes out on Mondays.

Paraître is a being verb when it means to seem and an action verb when it means to be published.

What the Distinction Controls

Four consequences follow from which family a verb belongs to, and all of them are visible in the spelling.

Being Verbs Take an Attribute, Not an Object

What follows a being verb describes the subject rather than receiving the action. Grammar books call it the attribut du sujet, and it can be an adjective, a noun, or a pronoun.

Ma sœur est architecte et elle semble heureuse.

My sister is an architect and she seems happy.

Being verb → describes the subject.

That Attribute Agrees

Because the adjective describes the subject, it copies the subject's gender and number. This is the single most visible consequence of the distinction, and it applies in every tense.

Les enfants sont restés silencieux et les filles sont restées calmes.

The children stayed silent and the girls stayed calm.

Adjective agrees with the subject.

Action Verbs Take Adverbs

An adverb tells you how the action was performed, and adverbs are invariable. Most are built from the feminine adjective plus -ment: lent gives lente gives lentement.

Elle a répondu franchement.

She answered frankly.

Action verb → invariable adverb.

Only Action Verbs Can Take a Direct Object

You can hit something, read something, or buy something. You cannot be something in the same sense, which is why être never has a direct object and its complement never becomes le, la, or les.

Elle lit un roman. Elle est romancière.

She's reading a novel. She's a novelist.

Object after action, attribute after being.

Neuter Le Replaces an Attribute

To avoid repeating an adjective after a being verb, French uses the invariable pronoun le, whatever the gender of the subject. It is a specific feature of this verb family.

Elle est fatiguée, et moi aussi je le suis.

She's tired, and so am I.

le, never la or les, for an attribute.

Common Mistakes with Action vs. Being Verbs

Incorrect: Elle semble fatiguement. — She seems tired.

Correct: Elle semble fatiguée. — She seems tired.

Sembler is a being verb, so what follows describes the subject and must be an adjective. Building an adverb here has nothing to attach to.

Incorrect: Il parle bon français, il chante bon. — He speaks French well, he sings well.

Correct: Il parle bien français, il chante bien. — He speaks French well, he sings well.

Parler and chanter are action verbs, so they need the adverb bien. Bon is the adjective and belongs after être: son français est bon.

Incorrect: Mon frère est un ingénieur. — My brother is an engineer.

Correct: Mon frère est ingénieur. — My brother is an engineer.

After être and devenir, a profession behaves like an adjective and takes no article. The article returns only if the noun is qualified: c'est un ingénieur brillant.

Incorrect: Elles sont restés calmes. — They stayed calm.

Correct: Elles sont restées calmes. — They stayed calm.

Rester is a being verb and takes être, so both the participle and the attribute agree with the feminine plural subject.

Verbs That Belong to Both Families

A handful of verbs switch sides depending on the sentence, and a few fixed expressions break the pattern altogether.

Verbs that change family with their meaning

Several verbs are actions in one sense and states in another. The clue is whether the following word describes the subject or the manner of the action.

Il tombe souvent.: He falls over often. (action)
Il est tombé malade.: He fell ill. (state)
Elle se trouve à Paris.: She's in Paris. (location)
Elle se trouve ridicule.: She thinks she looks ridiculous. (state)

Tomber amoureux, tomber d'accord and tomber malade all use tomber as a being verb, so the adjective agrees: elle est tombée amoureuse.

Sentir, sonner, and the adjectives that act like adverbs

A small group of verbs takes what looks like an adjective but is functioning adverbially. It stays invariable, because it describes the verb rather than the subject.

Ces fleurs sentent bon.: These flowers smell nice.
Ça sent mauvais ici.: It smells bad in here.
Cette idée sonne faux.: That idea rings false.
Elles parlent fort.: They speak loudly.

Compare elles sentent bon, invariable, with elles se sentent bonnes, which would be a very different and much odder sentence.

Avoir l'air

Avoir l'air behaves like a being verb even though it is built on avoir. In modern usage the adjective agrees with the subject.

Elle a l'air contente.: She looks pleased.
Ils ont l'air perdus.: They look lost.
Tu as l'air fatigué.: You look tired.

An older rule made the adjective agree with air, giving elle a l'air content. Both are found, but agreement with the subject is now standard.

Action vs. Being Verbs FAQs

What is a being verb in French?: A verb that links the subject to a description rather than to an action. The main ones are être, sembler, paraître, devenir, rester, demeurer, avoir l'air and passer pour. Whatever follows them describes the subject and agrees with it.
Why does the adjective agree after sembler?: Because it is describing the subject, not the verb. Elle semble fatiguée is really elle est fatiguée with a layer of doubt added, so the adjective takes the subject's gender and number exactly as it would after être.
How do I know whether to use bon or bien?: Bon is an adjective and follows a being verb: le repas est bon. Bien is an adverb and follows an action verb: il mange bien. If you could substitute être for the verb, you want bon.
Why is it ces fleurs sentent bon and not bonnes?: Because bon here is describing the smelling, not the flowers, so it is functioning as an adverb and stays invariable. The same happens in parler fort, coûter cher and voir grand.
Do being verbs take avoir or être in the past?: It varies. Être, sembler and paraître take avoir (elle a semblé surprise), while rester and devenir take être and agree with the subject (elle est devenue directrice). The verb family and the auxiliary are separate questions.