De vs des in French: after negation, quantities and plural nouns

Use des when you mean some plural things: j’ai des amis (“I have friends”). Use de after most negatives and after quantity words: je n’ai pas d’amis, beaucoup de livres. One complication: des can also be the contraction of de + les, meaning “of/from/about the” before a specific plural noun.

Des for unspecified plural nouns

Des is the plural indefinite article. English often says nothing in the same place, but French still needs an article.

J’ai des amis à Marseille. Elle achète des pommes.
I have friends in Marseille. She is buying apples.

Here the nouns are plural and not specific. You are not saying “the friends” or “the apples”; you are introducing some of them.

De after a negative

After a negative verb, un, une, des, du and de la usually collapse into de or d'. You are saying there is none of the thing.

J’ai des idées. → Je n’ai pas d’idées.
I have ideas. → I don’t have any ideas.

Il y a du pain. → Il n’y a pas de pain.
There is bread. → There is no bread.

Definite articles stay definite: je n’aime pas les pommes means “I don’t like the apples / apples in general”, not “I don’t have any apples”.

De after quantity words

Quantity words take de before the noun: beaucoup de, peu de, assez de, trop de, un kilo de, une bouteille de.

beaucoup de temps, trop de bruit, une bouteille d’eau
a lot of time, too much noise, a bottle of water

Do not add des after these unless you really mean de + les before a specific plural group.

When des means de + les

Des can also be a contraction: de + les = des. In that case it means “of the”, “from the” or “about the” before a specific plural noun.

Je parle des enfants de Marie.
I am talking about Marie’s children.

This is not the same as the indefinite des in j’ai des enfants (“I have children”). The shape is identical, so use the meaning to decide.

Before plural adjectives

In careful standard French, des often becomes de before an adjective that comes before a plural noun.

des amis → de bons amis
friends → good friends

You will hear des bons amis in casual speech, but de bons amis is the form to learn for writing and careful usage.

Common mistakes

Keeping des after pas

After a negative, the indefinite plural becomes de or d'.

Je n’ai pas des amis ici. → Je n’ai pas d’amis ici.
I don’t have friends here.

Saying beaucoup des for a general amount

Use beaucoup de for a general quantity.

J’ai beaucoup des livres. → J’ai beaucoup de livres.
I have a lot of books.

Removing des when it means de + les

If des means de + les before a specific plural noun, keep the contraction.

Je parle de enfants de Marie. → Je parle des enfants de Marie.
I am talking about Marie’s children.

De after negatives is one of the main details inside ne… pas, while plural des connects back to un and une. In Fluera you build these sentences from meaning first — some, none, a lot of — so the article choice follows the idea instead of a memorized translation. Try it when you practice French.

Practice