Indefinite Articles in French

In Brief

French uses un before a masculine singular noun, une before a feminine singular noun, and des before a plural noun: un livre, une maison, des amis. Unlike English “a” and “an,” the choice between un and une depends on the noun's grammatical gender, not on its first sound. Before a plural adjective that comes before its noun, des usually becomes de: de bons amis.

Overview

An indefinite article introduces a person or thing without identifying one specific person or thing. In J'achète un livre (“I'm buying a book”), the listener does not yet know which book is meant. An article normally stands before a noun (a word for a person, place, thing, or idea), and any adjective attached to that noun may come between them: une petite maison.

French has three basic indefinite articles: un, une, and des. English has “a” and “an” in the singular, but it often uses no article at all in the plural. French normally makes the plural explicit with des, even when the most natural English translation has no “some”: Elle achète des fleurs can mean “She is buying flowers.”

This is a core A1 pattern, but it depends on knowing that every French noun has a grammatical gender—it is classified as masculine or feminine. Gender is not usually about biological sex. A book is masculine (un livre), while a house is feminine (une maison). Learn a new noun together with its article so that its gender becomes part of the word in your memory.

How It Works

The basic forms

Number and gender	Article	Basic English equivalent	Example
Masculine singular	un	a, an, one	un café — a coffee
Feminine singular	une	a, an, one	une idée — an idea
Masculine or feminine plural	des	some, or no article	des cafés, des idées — (some) coffees, (some) ideas

The singular choice follows gender:

• un + masculine noun: un garçon, un problème, un hôtel
• une + feminine noun: une fille, une question, une heure

English chooses “a” or “an” according to sound. French does not have that distinction. A vowel or silent h does not change un to une or cause either form to lose a letter: un ami, une amie, un appartement, une école. You may hear linking between words—un ami sounds roughly like “un-nami”—but the spelling remains two words.

For the plural, gender no longer changes the article:

• un voisin → des voisins
• une voisine → des voisines
• un animal → des animaux

The noun and any adjective must still take their appropriate plural forms. The article des itself works with both genders.

What “indefinite” means

Use an indefinite article when the person or thing is one member of a group, is being mentioned for the first time, or has not been identified precisely:

• Il y a un restaurant près d'ici. — There is a restaurant near here.
• Une collègue m'a appelé. — A colleague called me.
• Nous cherchons des billets. — We are looking for tickets.

Once the item is identified or already known, French often switches to a definite article (le, la, les), equivalent to “the”:

• J'ai acheté un livre. Le livre est très drôle. — I bought a book. The book is very funny.

Compare Je cherche un médecin (“I am looking for a doctor—any suitable doctor”) with Je cherche le médecin (“I am looking for the particular doctor”). The article tells the listener whether the referent is presented as new and nonspecific or as identifiable.

Where the article goes

The article begins the noun phrase (the noun and the words that belong with it). Most French adjectives come after the noun, so the pattern is straightforward:

• article + noun + adjective: une voiture rouge, des exercices difficiles

Some common adjectives come before the noun:

• article + adjective + noun: un petit village, une bonne idée, des vieux bâtiments

In the singular, a preceding adjective does not change un or une: un bon repas, une longue journée.

Des becomes de before a preceding plural adjective

In careful standard French, des usually becomes de when a plural adjective stands before the noun:

• des amis → de bons amis
• des maisons → de grandes maisons
• des histoires intéressantes but de belles histoires

The position matters. Compare:

Structure	French	English
Noun before adjective	des livres intéressants	interesting books
Adjective before noun	de bons livres	good books

Before a vowel sound or a silent h, de contracts to d': d'excellentes idées, d'honnêtes personnes. Before an aspirated h—a historical class of French h that blocks contraction—it remains de, as in de hauts murs. A dictionary marks words with aspirated h; beginners can learn these cases as part of each expression.

In everyday conversation, speakers sometimes keep des before a preceding adjective (des bons amis). The de + adjective + plural noun pattern is the safest choice in edited writing and in careful speech. Some fixed expressions also preserve des, so this is a strong general rule rather than a claim that every phrase must behave identically.

Indefinite articles after negation

After a negative verb, un, une, and des generally become de or d' when the meaning is “not any” or “no”:

• J'ai une voiture. → Je n'ai pas de voiture.
• Il achète des oranges. → Il n'achète pas d'oranges.
• Nous avons un jardin. → Nous n'avons pas de jardin.

The contraction d' is used before a vowel sound or silent h. The noun can remain singular or plural according to the intended meaning: Je n'ai pas de frère (“I don't have a brother/any brother”) and Je n'ai pas de frères (“I don't have any brothers”) are both possible.

The main beginner exception is être (“to be”). After a negative form of être, the article normally remains:

• C'est un problème. → Ce n'est pas un problème.
• Ce sont des touristes. → Ce ne sont pas des touristes.

Negation can also reject one particular item rather than deny the whole category. In that contrastive meaning, the original article may remain: Je ne veux pas un café, mais deux (“I don't want one coffee, but two”). The ordinary A1 rule is still: after most negative verbs, use de/d'.

Examples in Context

French	English	Note
J'ai un livre pour le voyage.	I have a book for the trip.	Masculine singular
Léa cherche une maison à la campagne.	Léa is looking for a house in the country.	Feminine singular
Nous invitons des amis ce soir.	We are inviting some friends tonight.	Plural; “some” is optional in English
Il y a un hôtel près de la gare.	There is a hotel near the station.	A vowel sound does not change un
Elle propose une excellente idée.	She suggests an excellent idea.	Une remains before a singular adjective
Ce sont des exercices faciles.	These are easy exercises.	The adjective follows the noun
Nous avons rencontré de bons voisins.	We met some good neighbors.	Des becomes de before the adjective
Le musée présente d'anciennes photographies.	The museum displays old photographs.	De becomes d' before a vowel
J'achète des pommes au marché.	I buy apples at the market.	English naturally omits “some”
Elle n'a pas de vélo.	She does not have a bicycle.	Indefinite article after negation
Ils ne commandent pas d'entrées.	They are not ordering any starters.	Negative de contracts before a vowel
Ce n'est pas une erreur.	It is not a mistake.	Article retained after être
J'ai vu un chien. Le chien dormait devant la porte.	I saw a dog. The dog was sleeping by the door.	New mention, then identified reference
Mon frère est médecin, mais c'est un médecin très patient.	My brother is a doctor, but he is a very patient doctor.	Profession after être versus a described person

Common Mistakes

Choosing un or une from the first sound

• Wrong: une appartement
• Right: un appartement
• Why: French chooses the article by grammatical gender, not by whether the noun begins with a vowel. Appartement is masculine.

Leaving out the plural article because English does

• Wrong: Nous achetons fleurs.
• Right: Nous achetons des fleurs.
• Why: English can say “We are buying flowers,” but an ordinary French plural noun usually needs a determiner (a word such as an article that introduces a noun).

Using des before every plural noun phrase

• Less standard in careful usage: des belles photos
• Standard: de belles photos
• Why: When a plural adjective comes before the noun, des normally changes to de. If the adjective follows, keep des: des photos magnifiques.

Keeping un, une, or des after ordinary negation

• Wrong: Je n'ai pas une voiture. (when you mean that you have no car)
• Right: Je n'ai pas de voiture.
• Why: After most negative verbs, an indefinite article becomes de/d'. Keeping une would usually create a contrastive meaning, such as “not one car, but two.”

Applying the negative de rule after être

• Wrong: Ce n'est pas de surprise.
• Right: Ce n'est pas une surprise.
• Why: A negative form of être normally keeps the indefinite article.

Adding an article to every profession after être

• Awkward for a simple profession: Elle est une ingénieure.
• Natural: Elle est ingénieure.
• Also natural: C'est une ingénieure expérimentée.
• Why: A profession used as a simple label after être usually has no article. An article is natural when the noun is identified, described, evaluated, or introduced with c'est.

Usage Notes

Des does not always translate as “some”

French articles and English articles do not match word for word. Des marks an indefinite plural, while English often uses a bare plural—that is, a plural noun with no article. Both J'ai acheté des tomates and On voit des montagnes au loin usually sound more natural as “I bought tomatoes” and “You can see mountains in the distance,” not necessarily “some tomatoes” and “some mountains.”

English “some” can also stress an unknown amount or identity. Depending on context, French may then use an indefinite article, a partitive article, or another expression. Focus first on the French noun: if it refers to countable plural items presented indefinitely, des is the usual starting point.

Un and une can also mean “one”

The article forms are identical to the number words un and une. Context and emphasis usually make the meaning clear:

• Je voudrais un croissant. — I would like a croissant.
• Je voudrais un croissant, pas deux. — I would like one croissant, not two.

In speech, stronger stress on un often signals the number “one.” Gender still applies: une place, pas deux.

Pronunciation and liaison

Final consonants are often silent in French, but un, une, and des interact differently with the next word. In des amis, the final s of des is normally linked to the vowel and pronounced like a /z/ sound; this linking is called liaison. Un ami also has a linking consonant sound. Do not insert an apostrophe: the written forms are un ami and des amis, never u'ami or d'amis when the intended article is des.

Beyond the Basics: Later Contrasts and Exceptions

You do not need to master all of this at A1, but these distinctions explain forms you will meet later.

Indefinite versus partitive articles

Use un/une/des mainly with countable people or things: une pomme, des pommes. French commonly uses du, de la, de l' for an unspecified amount of something treated as a mass; these are called partitive articles:

• Je mange une pomme. — I am eating an apple.
• Je mange des pommes. — I eat/am eating apples.
• Je mange du pain. — I eat/am eating some bread.

The categories depend on meaning, not only on the noun. Un café is one serving or cup of coffee, while du café is an unspecified amount of coffee.

Quantity expressions also take de

After an expression of quantity, French generally uses de/d', not des:

• beaucoup de livres — many books
• trois kilos de pommes — three kilos of apples
• un peu d'eau — a little water

Here de is triggered by the quantity expression, not by a preceding adjective or by negation. Similar-looking forms can therefore come from different rules.

When des remains before an adjective

The change from des to de is strongest when the adjective independently describes the plural noun: de jeunes artistes, de longues vacances. But some adjective–noun combinations behave like established units, and everyday speech often favors des. You may therefore encounter forms such as des jeunes gens (“young people”) or conversational des superbes photos. Recognize this variation, but use de in productive adjective-before-noun phrases when you want a dependable standard form.

Article choice can change the message

An indefinite singular can classify or evaluate someone: C'est un génie (“He/She is a genius”). A definite article points toward an identifiable person: C'est le médecin dont je t'ai parlé (“That's the doctor I told you about”). With a profession after être, no article simply states the role: Elle est médecin. These are not random omissions; each structure packages the information differently.

Practice Tips

1. Learn article and noun as one unit. Write un livre and une maison, not just livre and maison. When reviewing vocabulary, say the plural too: des livres, des maisons.
2. Transform short phrases in three ways. Start with une voiture; make it plural (des voitures), add a preceding adjective (de belles voitures), then negate a sentence (Je n'ai pas de voiture). This separates three rules that all involve article changes.
3. Notice what English leaves unsaid. When reading paired French and English texts, circle French des where English has no article. When listening, pay attention to the /z/ liaison in phrases such as des amis and des idées.

Related Concepts

• Prerequisite: Gender of Nouns — knowing whether a noun is masculine or feminine lets you choose between un and une.