español · B1 · grammar · 4 minutes
Impersonal and passive se
Hide an actor or foreground the thing affected by an action.
Understand the choice
Se can hide an unspecified human actor or build a passive sentence around the affected thing. Agreement reveals the structure: impersonal se remains singular, while passive se agrees with its grammatical subject.
Core rule: Impersonal se uses singular for an unspecified human actor; passive se agrees with the thing being offered, sold, or done.
Notice it in context
Aquí se habla español y se venden libros.
Spanish is spoken here and books are sold.
Impersonal se uses singular for an unspecified human actor; passive se agrees with the thing being offered, sold, or done.
Se vive bien en esta ciudad.
People live well in this city.
Singular impersonal se makes a general statement.
Se alquilan dos habitaciones.
Two rooms are for rent.
The passive verb agrees with habitaciones.
What to remember
- Use impersonal singular with people as objects: se busca a los responsables.
- Use passive agreement with things: se busca una persona; se buscan dos personas.
Common trap: Do not pluralize every se construction. Se habla español is impersonal singular; se venden libros is passive and agrees with plural libros.