Check and changed task: Whose thing? Keep the relationship attached
By UK A Level Spanish · independent study · myAudience

Image: illustration, not a documentary photograph. The relative determiner agrees with the following noun: biblioteca or puertas. Phrase fragments illustrate agreement, not complete declarative sentences or real institutions. · Original operator-generated illustration; no institutional artwork or edition illustrations copied.
Check and changed task: Whose thing? Keep the relationship attached
Check: should la biblioteca cuyos empleados ayudan a los visitantes use cuyas because biblioteca is feminine? Answer: no. Empleados is masculine plural, so cuyos agrees correctly. The antecedent supplies the relation, not the relative determiner's ending. Changed task: replace empleados with personal and retain the intended singular collective noun. Answer: la biblioteca cuyo personal ayuda a los visitantes. Personal is masculine singular and takes cuyo; ayuda must also be singular here. Changing only the determiner would leave an inconsistent noun–verb relation. A complete repair checks the entire clause.
There is a useful boundary case. English can use which to refer to an entire preceding event: the workshop was cancelled, which disappointed the students. Do not automatically turn that into cuyo followed by a noun naming the disappointment. A straightforward original translation is se canceló el taller, lo que decepcionó a los estudiantes. Here lo que refers to what happened. By contrast, el taller cuya cancelación decepcionó a los estudiantes introduces cancelación as a noun related to taller and requires a complete surrounding sentence. The two constructions organise information differently. Identifying the antecedent prevents a mechanically elegant but structurally incomplete translation.
Worked example: Starting from la biblioteca cuyos empleados ayudan a los visitantes, replace empleados with personal and retain the intended singular collective noun.
la biblioteca cuyo personal ayuda a los visitantes.
Personal is masculine singular and takes cuyo; ayuda must also be singular here.
Changing only the determiner would leave an inconsistent noun–verb relation.
Answer: la biblioteca cuyo personal ayuda a los visitantes. Personal is masculine singular and takes cuyo; ayuda must also be singular here. Changing only the determiner would leave an inconsistent noun–verb relation. A complete repair checks the entire clause.
Check your understanding: should la biblioteca cuyos empleados ayudan a los visitantes use cuyas because biblioteca is feminine?
Answer: no. Empleados is masculine plural, so cuyos agrees correctly. The antecedent supplies the relation, not the relative determiner's ending.
Why: There is a useful boundary case. English can use which to refer to an entire preceding event: the workshop was cancelled, which disappointed the students. Do not automatically turn that into cuyo followed by a noun naming the disappointment. A straightforward original translation is se canceló el taller, lo que decepcionó a los estudiantes. Here lo que refers to what happened. By contrast, el taller cuya cancelación decepcionó a los estudiantes introduces cancelación as a noun related to taller and requires a complete surrounding sentence. The two constructions organise information differently. Identifying the antecedent prevents a mechanically elegant but structurally incomplete translation.