This is the 1873rd most frequent Catalan word.
formada
"Formada" in Catalan means "formed" or "shaped" in English.
In this sentence, 'formada' functions as a past participle adjective describing the composition of the class.
La classe està formada per vint alumnes.
The class consists of twenty students.
Here, 'formada' describes the geological structure of the mountain, indicating its makeup.
La muntanya està formada per capes de roca volcànica.
The mountain is composed of layers of volcanic rock.
In this sentence, 'formada' is used to describe the creation of the team in a passive voice construction.