grammar.articles.indefinite-uses
When un/una disappears: soy ingeniero
No article with professions, nationality, or religion after ser (es médica), after sin/con, and before otro, medio, cien, mil: otro café, media hora.
⚠ Stub: AI-drafted outline, not yet reviewed. The structure is permanent; the content will be expanded.
grammarA2stubdraftv0.1.0
Explanation
Unmodified profession/identity after ser drops the article: es abogado, soy canadiense. The article returns with an adjective: es un abogado excelente.
Also no article after sin/con (sin coche, con paciencia), in tener-phrases (tengo coche, no tengo hermanos), and never before otro, medio, cien, mil, tal: dame otro, espera media hora — *un otro is a French/English calque.
Examples
Mi socio es arquitecto.
My partner is an architect.
My partner is an architect.
Region: global
¿Me das otra servilleta?
Can you give me another napkin?
Can you give me another napkin?
Region: global