French Irregular Verbs: The Complete Guide (Patterns, Lists, and Real Usage)

French irregular verbs are the high-frequency verbs whose conjugations change stems or endings in ways that do not match the regular -er, -ir, and -re templates, and the practical solution is to learn them as a small core plus repeatable families (être/avoir/aller/faire first, then groups like venir/tenir and prendre/apprendre) across the three tenses you actually use: present, passé composé, and imperfect.

French is spoken by about 321 million people worldwide (Ethnologue, 27th edition, 2024), across dozens of countries and regions, so you will hear many accents, but the irregular verb system is shared across the Francophone world. If you can follow a Parisian interview, you can follow a Québécois news clip, the verb forms are the same even when pronunciation shifts.

If you want more everyday context for how verbs sound in real speech, pair this with our guides to how to say hello in French and how to say goodbye in French, because greetings are where irregular verbs show up immediately (Je suis, J’ai, Je vais).

What counts as an "irregular" verb in French?

In learner terms, an irregular verb is one you cannot reliably conjugate by taking the infinitive, removing the ending (-er, -ir, -re), and adding the standard present endings. In linguistics and reference grammars, many of these are better described as stem alternations: the endings may be normal, but the stem changes (for example, je viens vs nous venons).

Maurice Grevisse and André Goosse’s Le Bon Usage treats a lot of irregularity as systematic variation rather than chaos. That framing matters: if you learn the system, you stop feeling like French verbs are a pile of exceptions.

The three places irregularity hurts learners most

Irregular verbs cause the most trouble in:

1. Present tense: because you use it constantly and many common verbs have unique stems.
2. Passé composé: because you must choose the right auxiliary (avoir vs être) and know the past participle.
3. Imperfect (imparfait): because you need the correct stem (usually the nous form of the present, but irregular verbs can surprise you).

A dictionary like CNRTL or the Académie française’s online dictionary is useful here because it shows conjugation and usage notes in a reliable, standardized way (CNRTL, accessed 2026; Académie française, accessed 2026).

The core irregular verbs you must know first

If you only learn ten irregular verbs well, your French becomes dramatically more usable. These verbs are also the ones that build many fixed expressions and everyday lines you hear in films.

Below are the four that pay off fastest.

Être

Être (EH-truh) means "to be", and it is the backbone of identity, location, and many set phrases.

Present (présent)

Pronunciation notes: je suis is often said quickly like zhuh SWEE, and vous êtes is vooz EHT. Final consonants are often quiet, but the rhythm is clear.

Passé composé

Être uses avoir as the auxiliary: j’ai été (zhay ay-TAY).
Past participle: été (ay-TAY).

Imperfect (imparfait)

Stem: ét- (ay)
j’étais (zhay-TEH), tu étais, il était, nous étions, vous étiez, ils étaient.

Avoir

Avoir (ah-VWAHR) means "to have", and it is the most common auxiliary in compound tenses.

Present

Pronunciation notes: j’ai is often zhay, tu as is too ah, and ils ont ends with a nasal vowel, roughly eel ohn (nasal).

Passé composé

Avoir uses itself: j’ai eu (zhay oo).
Past participle: eu (oo).

Imperfect

Stem: av-
j’avais (zhah-VEH), tu avais, il avait, nous avions, vous aviez, ils avaient.

Cultural usage: age and idioms

French uses avoir for age: j’ai 20 ans (zhay van ahn), literally "I have 20 years." This becomes automatic once you stop translating word-for-word.

If you want more high-frequency building blocks, learn the core connectors in our 100 most common French words, since irregular verbs often appear right next to them (je, tu, on, ne, pas, déjà, encore).

Aller

Aller (ah-LAY) means "to go", and it is the engine of the near future (je vais + infinitive). It also uses être in the passé composé, which makes it a two-for-one verb to master early.

Present

Pronunciation notes: je vais is often zhuh VEH, vous allez is vooz ah-LAY, and ils vont is eel vohn (nasal).

Passé composé

Aller uses être: je suis allé(e) (zhuh SWEE ah-LAY).
Past participle: allé (ah-LAY), with agreement: allé, allée, allés, allées.

Imperfect

Stem: all-
j’allais (zhah-LEH), tu allais, il allait, nous allions, vous alliez, ils allaient.

Faire

Faire (FEHR) means "to do" or "to make", and it appears in everyday fixed phrases (faire attention, faire du sport, faire chaud).

Present

Pronunciation notes: je fais is often zhuh FEH, il fait is eel FEH, and ils font is eel fohn (nasal).

Passé composé

Faire uses avoir: j’ai fait (zhay FEH).
Past participle: fait (FEH).

Imperfect

Stem: fais-
je faisais (zhuh feh-ZEH), tu faisais, il faisait, nous faisions, vous faisiez, ils faisaient.

Irregularity as patterns: learn families, not isolated verbs

Once the core four are stable, the next step is to recognize families. This is the same learning principle you use in vocabulary: grouping reduces memory load, and it also helps you predict forms when you are speaking under pressure.

Anna Wierzbicka’s work on meaning and usage across cultures (Cross-Cultural Pragmatics, Mouton de Gruyter) is a useful reminder here: what learners need is not only forms, but forms in frequent, socially real situations. For verbs, that means building mini-scripts (requests, plans, excuses) around the irregular families.

Venir and tenir family

These verbs share a present pattern (viens, viens, vient, venons, venez, viennent) and a future/conditional stem (viendr-, tiendr-). Once you learn one, the other becomes much easier.

venir (vuh-NEER): to come
tenir (tuh-NEER): to hold, to keep

Present (venir):

Passé composé: être (je suis venu(e), zhuh SWEE vuh-NOO)
Imperfect stem: ven- (je venais, zhuh vuh-NEH)

Prendre family: prendre, apprendre, comprendre

These share the present plural prenons / prenez / prennent and the past participle pris. The singular present forms look short and feel irregular, but the family resemblance is strong.

prendre (PRAHN-druh): to take
apprendre (ah-PRAHN-druh): to learn
comprendre (kohm-PRAHN-druh): to understand

Present (prendre):

Passé composé: avoir (j’ai pris, zhay PREE)
Imperfect stem: pren- (je prenais, zhuh pruh-NEH)

Mettre family: mettre and permettre

These share the double consonant in the present (mets, mets, met, mettons, mettez, mettent) and the past participle mis.

mettre (MEH-truh): to put
permettre (pehr-MEHT-truh): to allow

Passé composé: avoir (j’ai mis, zhay MEE)
Imperfect stem: mett- (je mettais, zhuh meh-TEH)

The modal irregulars: pouvoir, vouloir, devoir

These are the verbs that make you sound like an adult speaker because they express ability, desire, and obligation. They also show up constantly in polite requests, especially with conditional forms.

For a practical politeness layer, see our French etiquette and customs guide, since modals are where tone changes fast.

Pouvoir

Pouvoir (poo-VWAHR): can, to be able to

Present:

Passé composé: avoir (j’ai pu, zhay POO)
Imperfect stem: pouv- (je pouvais, zhuh poo-VEH)

Vouloir

Vouloir (voo-LWAHR): to want

Present:

Passé composé: avoir (j’ai voulu, zhay voo-LOO)
Imperfect stem: voul- (je voulais, zhuh voo-LEH)

Devoir

Devoir (duh-VWAHR): must, to have to, to owe

Present:

Passé composé: avoir (j’ai dû, zhay DOO)
Imperfect stem: dev- (je devais, zhuh duh-VEH)

Pronunciation reality: what changes in fast speech (without changing the verb)

Learners often think they missed a conjugation because they did not hear it. In reality, French reduces sounds heavily, especially in common subject + verb chunks.

Here are the kinds of reductions you will hear:

• j’ai can sound like zhay, especially before a vowel.
• je suis can compress to zhuh SWEE.
• il y a (there is/are) can sound like eel-YAH.

If you are working on listening, combine verb study with targeted pronunciation work. Our French pronunciation guide helps you map spelling to sound, so irregular forms stop feeling invisible.

A practical 15-minute routine to learn irregular verbs (and keep them)

Memorizing tables is not enough, but tables are still useful as a reference. The goal is to convert forms into automatic chunks you can recognize and produce.

Step 1: pick one tense, one family

Start with the present, and choose one family (venir/tenir, prendre-family, mettre-family). Do not mix families in the same session.

Step 2: write six micro-sentences you would actually say

Examples (mixing core verbs with modals):

• je suis là (zhuh SWEE lah)
• j’ai pas le temps (zhay pah luh tahn)
• je vais rentrer (zhuh VEH rahn-TRAY)
• je peux pas (zhuh puh pah)
• je veux bien (zhuh vuh BYEH)
• je devais partir (zhuh duh-VEH par-TEER)

Step 3: rehearse with audio, then test yourself cold

Spaced repetition works best when the card includes audio and a full line, not just a single isolated form. If you use Anki, our Anki for language learning guide shows how to structure cards so you remember what you can actually say.

Common learner mistakes (and how to avoid them)

Mixing up auxiliaries in passé composé

Most verbs use avoir, but common movement verbs use être. When you are unsure, check a reliable entry (CNRTL, accessed 2026; Le Robert, accessed 2026), and then memorize the verb as a pair: infinitive + auxiliary.

Overusing je suis allé for every past movement

In real speech, French often uses other verbs (rentrer, partir, arriver) and context. Learn a few movement verbs with être early, but also learn the everyday alternatives you hear in dialogue.

Treating irregular verbs as a single giant list

A list feels productive, but it is a trap. Families are the real unit: once you know prendre, apprendre and comprendre become far less scary.

Learn irregular verbs the way you hear them in movies and TV

Irregular verbs are everywhere in dialogue because they carry the basic actions and social moves: being, having, going, doing, wanting, needing. If you train them in real lines, you learn pronunciation, rhythm, and when people actually choose each tense.

If you want a next step, practice with short, high-frequency scenes and subtitles, then recycle the lines into spaced repetition. For more French learning paths, browse the Wordy blog or start focused listening on /learn/french.