Le Présent: Avoir (to have)

Avoir (to have) is the second pillar of the French verb system, alongside être. It is the verb of possession (j'ai un livre), the verb of age (j'ai vingt-cinq ans), the verb of sensation (j'ai faim, j'ai chaud, j'ai peur), and the auxiliary that builds the passé composé for the vast majority of French verbs (j'ai parlé, tu as fini, il a vendu). It also drives one of the most useful constructions in spoken French — the existential il y a ("there is / there are").

Like être, avoir is highly irregular. None of its forms are derivable from a regular template. But unlike être, the irregularity is concentrated in the singular — j'ai, tu as, il a — and the plural forms partly resemble what you would expect from a regular -er-style paradigm (nous avons, vous avez) before twisting one last time at ils ont. This page lays out the paradigm, the elision and liaison patterns that make spoken avoir sound the way it does, the family of avoir-sensation idioms that English speakers have to internalize, and the dual auxiliary system that makes avoir indispensable.

The full paradigm

Several features deserve close attention.

Mandatory elision: je → j'. Avoir begins with a vowel, so the je form contracts to j'ai, never je ai. The elision is not optional; the spelling and the pronunciation both require it.

Obligatory liaisons. The plural forms all begin with a vowel (avons, avez, ont), and the subject pronouns nous, vous, ils, elles all end in silent -s. French resurrects the -s as a /z/ liaison consonant before each vowel-initial verb form:

• nous avons /nu‿zavɔ̃/
• vous avez /vu‿zave/
• ils ont /il‿zɔ̃/
• elles ont /ɛl‿zɔ̃/

Forgetting these liaisons is the single most identifiable mark of an Anglophone speaker of French. Vous avez without the /z/ — /vu ave/ — sounds clearly foreign; with the /z/ — /vu‿zave/ — it sounds native.

The minimal pair ils sont vs ils ont. This is a notorious source of confusion:

• ils sont /il sɔ̃/ — they are
• ils ont /il‿zɔ̃/ — they have

The only spoken difference is the /s/ versus the /z/ at the start of the verb. If you mishear or mispronounce by one phoneme, you have switched between être and avoir — and switched the meaning entirely. Drill this contrast aloud until it is automatic.

Possession: the most basic use

The lexical core of avoir is possession — owning, having, holding something. This includes physical objects, abstract relationships, and most things English would express with "have."

A subtlety: where English says "I have a headache," French says j'ai mal à la tête — the French construction is "I have pain in the head," using avoir mal à + body part. J'ai un mal de tête exists but is less common in everyday speech.

Age: avoir + number + ans

This is one of the canonical English-speaker traps. In French, you do not "be" a number of years; you "have" them.

The construction is fixed and obligatory: avoir + number + ans (always plural, even for one year — il a un an). The word ans cannot be omitted. J'ai vingt-cinq without ans would be incomprehensible — it sounds like you have twenty-five of something unspecified.

The same pattern underlies the standard age question: Quel âge as-tu ? / Quel âge avez-vous ? — literally "what age have you?" Note that French uses avoir even in the question.

This pattern matches Italian (ho venticinque anni) and Spanish (tengo veinticinco años) — Romance languages treat age as a possession ("I have years") rather than a state ("I am years").

The avoir-sensation idioms

The single most important set of idioms in beginner French is the family of physical and emotional sensations expressed with avoir + bare noun. Every one of these would use "be" + adjective in English. Memorize the full list:

These are not optional alternatives to être + adjective. They are the only correct way to express these meanings in French. Je suis faim is not a sentence; it is gibberish. Je suis chaud is grammatical but means something rude (sexual arousal), not "I am hot temperature-wise."

The same logic underlies these constructions in Italian (ho fame, ho sete, ho 25 anni) and Spanish (tengo hambre, tengo sed, tengo miedo). All three Romance languages share the underlying conceptualization: these states are possessions ("I have hunger") rather than adjectival states ("I am hungry"). English is the outlier; French, Italian, and Spanish are aligned.

Avoir as auxiliary: the workhorse of the past tense

Avoir is the auxiliary that builds the passé composé (and other compound tenses) for the vast majority of French verbs — every transitive verb, plus all the intransitive verbs that are not in the maison d'être. Roughly: if a verb takes a direct object, it takes avoir; if it does not, it might take avoir or être depending on which class it belongs to. For full coverage see Auxiliary Choice.

Construction: avoir (conjugated in present) + past participle.

When avoir is the auxiliary, the past participle does not agree with the subject — it stays in the masculine singular form by default. (It does agree with a preceding direct object, but that is a finer rule covered in Participle Agreement.) This contrasts with être as auxiliary, where the participle always agrees with the subject.

Il y a: the existential

A construction that uses avoir in a fixed, invariable form: il y a (literally "it has there") means "there is" or "there are."

The form is invariable for number — il y a covers both "there is" and "there are." It also has time-related uses: il y a deux ans (two years ago), il y a une heure que je t'attends (I've been waiting for you for an hour). The negative is il n'y a pas (or in casual speech y a pas), and the question form is est-ce qu'il y a / y a-t-il.

Negation, questions, elision

Avoir follows the standard rules, with one twist: the ne of negation elides to n' before the vowel-initial forms.

In the inverted form a-t-il / a-t-elle / a-t-on, French inserts a -t- for euphony to prevent the vowel of a from colliding with the vowel of the pronoun. A-t-il faim ? (Is he hungry?), not a il faim. The -t- has no grammatical meaning — it is purely there to keep the vowels from running together.

In casual spoken French, ne drops: j'ai pas le temps, t'as pas faim. This is universal in everyday speech but inappropriate for formal writing.

Sample dialogue

Common mistakes

Mistake 1: Using être for sensations and age.

Mistake 2: Forgetting elision (je → j').

Mistake 3: Skipping the liaison.

Mistake 4: Confusing ils sont and ils ont.

Mistake 5: Wrong auxiliary in compound tenses.

Mistake 6: Treating avoir besoin as if besoin were optional.

Key takeaways

Avoir is the second cornerstone of the French verb system, and learning it is non-negotiable.

Three points to internalize:

1. The forms are irregular and need the elision and liaisons memorized: j'ai, tu as, il a, nous avons, vous avez, ils ont. The /z/ liaisons in nous avons, vous avez, ils ont are obligatory, not optional. The minimal pair ils sont /il sɔ̃/ vs ils ont /il‿zɔ̃/ must be drilled until automatic.

2. Sensations, age, and a closed list of states use avoir

   • bare noun
   : j'ai faim, j'ai soif, j'ai 25 ans, j'ai chaud, j'ai peur, j'ai sommeil, j'ai raison, j'ai envie de, j'ai besoin de. This is the same pattern as Italian and Spanish; English is the outlier.

3. Avoir is the default auxiliary for compound tenses. Most verbs build their passé composé with avoir

   • past participle: j'ai parlé, tu as fini, il a vendu, nous avons mangé. Only the maison d'être verbs and the reflexives use être instead. With avoir, the participle does not agree with the subject by default.

Once avoir and être are both solid, the door to the passé composé opens — and from there, the entire French past-tense system becomes accessible. Move on to the auxiliaries overview and auxiliary choice when you are ready to start using compound tenses.