Indefinite Articles: un, una, uns, unes

Catalan indefinite articles agree in gender and number: un, una, uns, unes. Singular un/una commonly introduces one member of a class that the listener cannot yet identify. Plural uns/unes can mean “some/a few” in certain contexts and, before a number, “approximately.”

English a/an changes for sound, not gender. Catalan un/una changes for the grammatical gender of the noun, while neither form elides: un amic, una amiga.

The choice between a countable phrase and a bare quantity is developed further in Mass and Count Nouns.

The complete paradigm

The second sentence shows agreement throughout both phrases: unes–investigadores–catalanes–joves is feminine plural; uns–projectes–innovadors is masculine plural.

Introducing a referent

Use un/una when a person or thing enters the conversation without already being identifiable to the listener. Once it becomes established, a definite article or a pronoun normally tracks it.

The first phrase asks the listener to create a new discourse referent; the second points back to that now-familiar wallet. This is why articles express discourse status rather than merely translating English words.

An indefinite phrase can still refer to a particular entity known to the speaker: M'ha trucat una professora de Girona may describe one real teacher whose identity is not relevant or not known to the listener. It can also be nonspecific:

The sentence does not assert that such an apartment has already been identified.

Un as article and as numeral

Historically and grammatically, the article is closely related to the numeral “one.” Context tells you whether quantity is being contrasted. Tinc un germà can simply introduce “a brother,” but in Tinc un germà, no dos, un is explicitly numerical and receives more stress.

The feminine numeral and article are both una: una entrada. Gender agreement remains even when “one” is emphatic.

Plural uns and unes: some, a few

Plural uns/unes is possible when the phrase presents a limited, nonidentified quantity: unes trucades, uns parents, unes ostres. It is common in time and distance expressions such as fa uns dies and uns metres més enllà.

However, plural uns/unes is not a mechanical equivalent of English some. A neutral indefinite plural often has no article: Hi ha núvols; necessito cadires; comprarem tomàquets. Adding uns/unes tends to package the referents as a limited set and is especially natural with a modifier or further description.

The first núvols merely reports a kind of thing present; uns núvols negres introduces a bounded, describable group.

Approximation before numbers

Before a cardinal number, plural uns/unes means “about” or “approximately.” The article agrees with the noun beyond the number, not with the spoken shape of the numeral.

This approximation can be slightly below or above the stated number. By contrast, gairebé trenta means specifically “almost thirty,” therefore below it.

Mass nouns and English some

English often inserts some with an indefinite amount. Catalan commonly uses a bare mass noun: necessito informació, compra pa, beu aigua, tenim temps. An article makes the noun countable, classified, or expressive and may change the meaning.

Una informació is not the neutral way to mean an unspecified amount of information. Depending on context, use informació, una dada, or una notícia. Similarly, fa calor is neutral “it is hot,” while fa una calor que ofega intensifies the experience: “it is unbearably hot.”

Position and compatible modifiers

The indefinite article occupies the main determiner position, so it does not normally combine with el/la or a demonstrative: un llibre, aquest llibre, not aquest un llibre. It does combine with altre and cert: un altre dia, una certa preocupació.

Most descriptive adjectives follow: una proposta interessant. A few frequent evaluative adjectives naturally precede and can alter emphasis: un bon amic means a good friend, while un amic bo strongly classifies the friend as morally good or kind.

Prepositions remain separate except for ordinary apostrophization of de: a un hotel, per una carretera, d'un poble, d'una ciutat. There is no contraction parallel to al/del with the indefinite article.

Gender traps from Spanish

Catalan says una anàlisi detallada and un avantatge clar. Spanish has masculine análisis and feminine ventaja, so copying the cognate produces the wrong article and then spreads the error to adjectives.

The written forms un/una/uns/unes are shared across the general Catalan standards. (regional: Central) final unstressed a in una is normally reduced to [ə]; (regional: Valencian) it remains [a]. That pronunciation difference does not license mixing spellings or agreement patterns.

Common Mistakes

1. Ignoring gender before a vowel.

2. Translating every English some as uns or unes.

3. Failing to agree an approximate article.

4. Importing Spanish gender.

5. Combining competing determiners.

Key Takeaways

Use un/una to introduce one new or nonspecific referent and uns/unes for certain limited plural sets. Before a number, plural forms mark approximation and agree with the noun. Bare plurals and mass nouns often correspond to English phrases with some, so do not insert an indefinite article automatically. Learn Catalan gender independently of Spanish, and remember that una never elides.