Être: Complete Paradigm Reference

This is the complete paradigm reference for être — every simple tense, every compound tense, every mood, including the literary forms (fus, fût, fussent, eût été) that you will rarely produce but must recognize when reading. The everyday treatment of être — identity, location, the c'est/il est split, the maison-d'être auxiliary role — lives at verb-reference/etre. This page is for the moments when you need to look up a form, including the obscure ones.

Être is the most-frequent verb in French, the most irregular, and one of the most fascinating in any Romance language because its paradigm is suppletive in three directions: it draws stems from three unrelated Latin verbs that historical accident fused into a single conjugation. There is no single underlying root — suis / étais / fus / serai / sois belong to four different morphological worlds. Understanding the three Latin sources makes the irregularity feel less arbitrary.

Etymology: three Latin verbs in one French conjugation

French être descends from a merger of three unrelated Latin verbs (and one debated fourth). Each contributed specific forms to the modern paradigm.

The takeaway: there is no single underlying root. The infinitive être (from stare) shares no morphology with suis (from esse), fus (from a different Latin perfect), or serai (from yet another esse-derived stem). You must learn five distinct stems separately — suis-/es-/est-/sommes-/êtes-/sont- for the strong present, ét- for the imparfait and most non-finite forms, fu-/fû- for the passé simple and subjonctif imparfait, ser- for the futur and conditionnel, soi-/soy- for the subjonctif présent.

This three-way (or four-way) suppletion is unusual even among Romance languages. Spanish ser and Italian essere show the same fusion, but English to be is the closest typological parallel: am / is / are / was / been draws from three Old English verbs.

Simple tenses: complete paradigms

Présent de l'indicatif

The most irregular paradigm in French. Five distinct forms, all from Latin esse. Note the obligatory liaison in vous êtes, where the s of vous is realized as /z/ before the vowel-initial êtes.

The contrast ils sont /il sɔ̃/ vs ils ont /il‿zɔ̃/ is one of the most consequential pronunciation distinctions in spoken French — the only audible signal that distinguishes "they are" from "they have" is the liaison /z/ inside ils ont. Mishearing this is a constant source of beginner confusion.

The circumflex on êtes is historically significant — it marks a lost -s- (medieval estes) that survived in English borrowings (estate, establish).

Imparfait

Built on the irregular stem ét- (from Latin stare) plus the regular imparfait endings. The ét- stem is the unique-to-être substitute for the more typical pattern of taking the nous form of the present (sommes would never give an imparfait stem) — historical reasons forced French to import the imparfait stem from a different Latin verb.

Passé simple (literary)

Stem fu- / fû- (from a Latin perfect that linguists trace to a separate root, possibly fui). Used in literary writing, biographies, and historical narration — almost never spoken.

The circumflex on fûmes and fûtes is obligatory — it marks the long vowel and historically descends from a lost -s- (medieval fu(s)mes). The 1990 spelling reform makes the circumflex optional on i and u in many words, but it is kept on the 1pl/2pl of the passé simple and subjonctif imparfait to disambiguate from other forms.

Futur simple

Stem ser- (from a Latin esse-derived stem). Endings are the regular futur endings -ai, -as, -a, -ons, -ez, -ont.

Conditionnel présent

Same stem ser- as the futur, with imparfait endings.

Subjonctif présent

Stem soi- (1sg, 2sg, 3sg, 3pl) and soy- (1pl, 2pl). Like the indicative, this paradigm draws on the esse root but in a distinct form.

The forms sois, soit, soient are all pronounced /swa/ — three homophones distinguished only in writing.

Subjonctif imparfait (literary)

Built on the same fu- stem as the passé simple, with the standard subjunctive-imparfait endings -sse, -sses, -̂t, -ssions, -ssiez, -ssent (the 3sg form drops -sse and adds a circumflex on the stem vowel instead). Used almost exclusively in literary writing.

The 3sg fût takes a circumflex — without it, the form would be fut, the passé simple. The circumflex is the only orthographic distinction between the two paradigms in the third-person singular and is a carefully observed editorial point in serious publishing.

Impératif

Three forms, taken from the subjunctive stem soi-/soy- (not the indicative). Used for direct commands.

Participles and gérondif

The participle été is invariable — never étée, étés, étées. This is one of the few French participles that doesn't agree with anything: not the subject (elles ont été, not elles ont étées), not a preceding direct object (because être never takes a direct object). This invariability falls out of the auxiliary logic — être uses avoir as its own auxiliary, but it has no direct object to agree with, and avoir doesn't trigger subject agreement.

Compound tenses: complete paradigms

Être uses avoir as its auxiliary in compound tenses — even though être itself is the auxiliary for the maison-d'être motion verbs. This may seem paradoxical: how can the verb that signals "use être as auxiliary" use avoir for itself? The answer is that the maison-d'être selection is a property of the lexical verb (motion verbs and reflexives), and être is not a motion verb. So être falls into the default avoir-auxiliary class. The participle été is invariable.

Passé composé

avoir (présent) + été

In ordinary speech, j'ai été is far less common than the imparfait j'étais. French strongly prefers the imparfait for past states with être — j'ai été content is grammatical but signals a punctual or bounded past state ("I was happy [for a while, and then no longer]"), while j'étais content signals an ongoing state ("I was happy [in the period being described]"). Mistakenly using j'ai été where j'étais is wanted is one of the most common Anglophone errors.

A note on the second example: j'ai été à + place is colloquially used as a synonym for je suis allé à + place ("I went to" = "I was at"). This is widely accepted in casual speech but considered slightly informal in writing.

Plus-que-parfait

avoir (imparfait) + été

Passé antérieur (literary)

avoir (passé simple) + été

Futur antérieur

avoir (futur) + été

Conditionnel passé

avoir (conditionnel) + été

Subjonctif passé

avoir (subjonctif) + été

Plus-que-parfait du subjonctif (literary)

avoir (subjonctif imparfait) + été

This is the most literary form in the entire paradigm — eût été combines two circumflex-marked subjunctive imparfaits and signals the highest register of formal French. Survives in 19th-century novels, official prose, and stylistic flourishes.

Pronunciation notes

Three points are worth memorizing.

1. The circumflex on êtes is obligatory. Vous êtes /vu‿zɛt/ — the circumflex marks a lost -s- (medieval vous estes). Don't drop it in writing.

2. The participle été is invariable and pronounced /e.te/. Two equal syllables, no nasalization. Never étée, étés, étées — even with feminine plural subjects, été stays the same.

3. The /swa/ family of subjunctive forms. Sois, soit, soient are all /swa/ — three homophones in writing. Soyons /swa.jɔ̃/ and soyez /swa.je/ break the pattern with the y introducing a /j/ glide.

Comparison with English

Three friction points worth restating in a paradigm reference.

1. Compound tenses use avoir, not être. J'ai été, never je suis été. This is the paradoxical case: être is the auxiliary for the maison-d'être verbs, but for itself, the verb falls back on the default auxiliary avoir. The same rule applies to avoir: j'ai eu, not je suis eu.

2. The participle été is invariable. Unlike most past participles, été never agrees — not with the subject, not with anything. Elles ont été heureuses, never elles ont étées heureuses. Memorize this as a one-off exception to the participle agreement system.

3. French strongly prefers imparfait over passé composé for past states. English speakers default to j'ai été content ("I was happy") because it parallels English structure, but French expects j'étais content. The passé composé j'ai été is reserved for punctual, bounded reactions ("I had a moment of being") rather than ongoing states.

Common Mistakes

Mistake 1: Using être as auxiliary for itself.

Mistake 2: Agreeing the participle été.

Mistake 3: Spelling fut without circumflex when the subjunctive imparfait is required.

Mistake 4: Defaulting to j'ai été where the imparfait is expected.

Mistake 5: Dropping the circumflex on êtes.

Key takeaways

Être is suppletive in three (or four) directions — its paradigm draws on Latin esse (suis, es, est, sont, sois, soit), stare (être, étant, été, étais), an esse-derived future stem (serai, serais), and a separate Latin perfect (fus, fut, fût). There is no single underlying root.

The 3sg fût carries an obligatory circumflex that distinguishes it from the passé simple form fut. The same applies to eût of avoir. Both subjunctive imparfait 3sg circumflexes are carefully observed in literary publishing.

The participle été is invariable — never agrees with anything. Être uses avoir as its auxiliary in compound tenses (j'ai été), even though être itself is the auxiliary for maison-d'être verbs.

For ongoing past states, French strongly prefers the imparfait j'étais over the passé composé j'ai été. The passé composé is reserved for punctual or bounded past states.

This page is the paradigm reference. For the everyday usage — identity, location, the c'est/il est split, the maison-d'être auxiliary role, and the avoir/être sensation contrast — see verb-reference/etre.