Resolving Seu and Llur

The forms seu, seva, seus, and seves identify a third-person or polite possessor, but they do not tell you whether that possessor is “his,” “her,” “their,” or formal “your.” Catalan resolves that ambiguity through context or replaces the possessive with an explicit de-phrase.

The formal possessive llur/llurs solves one narrower problem: it means “belonging to them,” never “belonging to him or her.” It agrees only in number with the possessed noun.

For the full ordinary paradigm and article placement, see Tonic Possessives.

What the two possessives encode

Seu/seva agrees in gender and number; llur/llurs distinguishes only one possessed item from several. Neither series changes to reflect male versus female possessors.

Why seu is so ambiguous

The same phrase la seva casa can mean “his house,” “her house,” “their house,” “your house” to vostè, or “your house” to vostès. In a simple discourse, the most salient compatible person normally supplies the possessor.

No real ambiguity arises because la Marta is the only plausible possessor. Problems begin when two or more candidates compete:

Grammar cannot choose between Marta and Joana. English may distinguish his/her/their, but even English her would remain ambiguous between two women. Spanish su is similarly broad, so copying Spanish does not resolve anything.

The clearest solution: a de-phrase

Replace the possessive with de + explicit possessor: la filla de la Marta, el despatx d'en Pau, les claus d'ella, el projecte d'ells. This is not clumsy repetition when it prevents a genuine misunderstanding.

A strong personal pronoun is useful for contrast: el cotxe d'ell, no el d'ella. Repeating the name is usually clearer when several third persons of the same gender appear.

Llur: plural possessor, not plural possession

Llur means “of them” and therefore requires a plural possessor. Its own singular/plural contrast tracks the possessed noun:

Compare a singular possessor:

Using llur projecte after singular l'alumna is impossible because llur encodes multiple possessors. Conversely, llurs does not mean that the owners are plural; plural ownership is already built into both llur and llurs.

Register and regional syntax of llur

In most varieties, llur/llurs is occasional and belongs chiefly to (formal) legal, administrative, historical, or carefully edited prose. The broadly natural everyday alternative is el seu/la seva/els seus/les seves or an explicit de-phrase.

In the general formal pattern, llur comes before the noun without an article: llur advocada, llurs drets. It can also appear after a noun in the marked pattern els secretaris llurs. (regional: Northern Catalan) it remains more habitual and is generally preceded by an article: el llur pare. Northern speech can additionally show analogical feminine forms llura/llures; these are regional forms, whereas general formal Catalan keeps llur/llurs invariable for gender.

Do not scatter llur through relaxed conversation merely to sound precise. Els nens han agafat les seves motxilles is natural; Els nens han agafat llurs motxilles is correct but markedly formal outside the Northern area.

Llur narrows ambiguity but does not eliminate it

Llur distinguishes a plural possessor from a singular one:

But if two plural groups compete, llur remains ambiguous: Els pares van parlar amb els mestres de llur proposta does not identify whether the proposal belongs to the parents or the teachers. Write de la proposta dels pares or de la proposta dels mestres.

Propi can mark subject-oriented possession

In a truly contrastive context, propi/pròpia/propis/pròpies can reinforce that the possessor is the subject: L'Albert va incloure els seus propis poemes means Albert included poems written by Albert himself, not somebody else's.

Do not insert propi mechanically as a replacement for English own. It is justified when the self-versus-other contrast matters; otherwise els seus contes or els contes de l'editora is clearer.

Position and competing determiners

Prenominal seu normally follows a definite article: la seva proposta. After an indefinite or demonstrative, use the postnominal form: una proposta seva, aquesta proposta seva. A de-phrase also follows the noun: aquesta proposta dels estudiants.

Prenominal general-formal llur itself fills the determiner position: llur proposta, not la llur proposta in that pattern. Article-bearing Northern usage is a labeled regional system, not a form to mix casually into Central formal prose.

Editing a genuinely ambiguous sentence

Original: Quan els metges van parlar amb els pacients, van revisar els seus informes. The possessive may point to either group.

If the reports belong to the doctors, write els informes dels metges. Llurs informes would still be ambiguous because both possible possessors are plural.

Common Mistakes

1. Agreeing seu with a female possessor.

2. Using llur with one possessor.

3. Making llur plural because the owners are plural.

4. Using llur for polite your.

5. Assuming llur identifies one of two plural groups.

Key Takeaways

Seu/seva/seus/seves agrees with the possessed noun but may refer to a singular or plural third-person possessor or a polite addressee. Use context when only one antecedent is plausible; otherwise write an explicit de-phrase. Formal llur/llurs guarantees a plural possessor and marks only the number of the possessed noun, but it cannot distinguish between two competing plural groups.