Grammar / A1 : Beginner / Indefinite articles
Indefinite articles
un, une, des: introducing an unidentified element.
New information needs an article
A friend sends you a message: « J'ai vu un film, mangé une pizza et rencontré des gens sympas ce soir. » Three different words (,un, une, des,) all doing the same job: flagging that something is being introduced for the first time. In English you'd say "a film", "a pizza", "some nice people". French works the same way, with one twist in the plural that catches almost every learner off guard.
1. Un, une, des : the basics
Like all French articles, these three agree with the noun in gender and number. There is no separate form for "an" : un and une cover both "a" and "an".
| Form | Gender & number | English | Examples |
|---|---|---|---|
| un | Masculine singular | a / an | un livre (a book) · un ami (a friend) · un homme (a man) |
| une | Feminine singular | a / an | une table (a table) · une amie (a friend f.) · une heure (an hour) |
| des | Masculine or feminine plural | some (or nothing in English) | des livres (books) · des amis (friends) · des idées (ideas) |
That last column matters. In English, the plural often drops the article entirely: "I have friends", "She has ideas". French always keeps des; skipping it is one of the most frequent written errors at this level.
⚠ ❌ J'ai amis à Paris. → ✓ J'ai des amis à Paris. (I have friends in Paris.)
⚠ ❌ Il a idées intéressantes. → ✓ Il a des idées intéressantes. (He has interesting ideas.)
2. Indefinite or definite : how to choose
The simplest way to think about it: indefinite for new information, definite for information already shared. Follow a noun through a short text and watch the article switch.
Il y a un chat dans le jardin. (There is a cat in the garden.) → first mention
Le chat est blanc et dort sur l'herbe. (The cat is white and sleeping on the grass.) → we know this cat now
The definite article (le, la, les) also handles general categories: things you're talking about as a whole. Indefinite articles never do this.
J'aime les chats. (I like cats; cats in general.) ← definite
J'ai un chat. (I have a cat: one specific cat.) ← indefinite
Je cherche un appartement. (I'm looking for a flat; any flat, I haven't found one yet.)
C'est une belle ville. (It's a beautiful city, one of many beautiful cities.)
3. Professions : where the article disappears
After être, job titles and professions drop the article entirely: as long as no adjective is involved. This surprises English speakers every time.
| ❌ English logic | ✓ French |
|---|---|
| She is a doctor. | Elle est médecin. |
| He is a teacher. | Il est professeur. |
| I am a student. | Je suis étudiant(e). |
Add an adjective, or switch from il est to c'est, and the article comes straight back:
Il est médecin. → C'est un médecin. (He is a doctor.)
Elle est professeure. → C'est une très bonne professeure. (She is a very good teacher.)
4. After negation : un, une, des become de
This is the rule that trips up almost everyone. When a sentence is negative, un, une and des all change to de (or d' before a vowel or silent h). Think of it as French saying "not any" rather than "not a".
| Affirmative | Negative |
|---|---|
| J'ai un chien. (I have a dog.) | Je n'ai pas de chien. (I don't have a dog.) |
| Elle mange une pomme. (She's eating an apple.) | Elle ne mange pas de pomme. (She's not eating an apple.) |
| Il y a des erreurs. (There are errors.) | Il n'y a pas d'erreurs. (There are no errors.) |
| Tu as des nouvelles ? (Do you have news?) | Je n'ai plus de nouvelles. (I no longer have any news.) |
⚠ One exception: after être, nothing changes.
✓ Ce n'est pas un problème. (It's not a problem.) ❌ Ce n'est pas de problème.
✓ Ce n'est pas une bonne idée. (That's not a good idea.)
5. Des → de before an adjective
In careful written French, when des comes immediately before an adjective that precedes the noun, it shortens to de. In everyday speech, most people keep des (so you will hear both versions).
| Adjective after the noun → des stays | Adjective before the noun → de (written French) |
|---|---|
| des maisons rouges (red houses) | de grandes maisons (large houses) |
| des enfants sages (well-behaved children) | de jeunes enfants (young children) |
| des films intéressants (interesting films) | de beaux films (beautiful films) |
💡 The adjectives that most commonly come before the noun: grand, petit, bon, mauvais, beau, joli, jeune, vieux, nouveau, long, gros. Learn this list; it unlocks a lot of natural-sounding French.
6. Key points
✓ un (m. sg.) / une (f. sg.) / des (pl.) (agree with the gender and number of the noun)
✓ French always needs des in the plural even when English drops the article: J'ai des amis.
✓ First mention → indefinite | already known → definite | general category → definite
✓ Profession after être: no article, Il est médecin. / but: C'est un médecin.
✓ After negation: un / une / des → de / d' (except after être)
✓ Adjective before noun (formal writing): des → de: de grandes maisons