Estudiadas

Estudiadas is the feminine plural form of the past participle of the verb estudiar. It functions as an adjective meaning “studied” or “investigated” and, in sentences with the passive voice, as a past participle that agrees with feminine plural nouns. It describes something that has been examined or researched by someone.

Etymology and form: The word is built from estudiar plus the standard -ado suffix for regular -ar verbs. The masculine plural is estudiados, and the feminine singular is estudiada, with estudiadas serving feminine plural contexts.

Usage: Estudiadas appears before a feminine plural noun or after estar/ser in a passive construction. Examples: “las muestras estudiadas” (the studied samples); “las teorías estudiadas por el equipo” (the theories studied by the team). It can also be used in phrases like “fueron estudiadas” to express a completed action of studying with a feminine plural subject.

Notes on gender and number: Because estu diadas agrees with feminine plural nouns, it is not used for masculine or mixed-gender groups, for which the masculine plural estudiados is appropriate. As a participle, estu diadas functions similarly to other -ado participles in Spanish grammar and may participate in compound tenses or passive constructions.

Related terms: Estudiar, participio pasado, and adjectives formed from verbal roots follow similar agreement rules. Estudiadas is a standard example of a regular -ar participle used as an adjective in modern Spanish.