estudian

Estudian is the present indicative form of the Spanish verb estudiar for third-person plural subjects, meaning "they study." It is used with pronouns such as ellos, ellas, or ustedes to indicate that a group is engaging in study. For example, "Ellos estudian en la biblioteca" means "They study in the library." In everyday usage, this form appears when describing actions by multiple people or by a group.

Conjugation and related forms: Estudiar is a regular -ar verb. In the present tense the forms are: estudio, estudias, estudia, estudiamos, estudian. Other common tenses include the preterite "estudié / estudiaste / estudió / estudiamos / estudiaron" and the imperfect "estudiaba / estudiabas / estudiaba / estudiábamos / estudiaban." The present subjunctive is "estudie / estudies / estudie / estudiemos / estudien," and the past participle is "estudiado."

Etymology and usage: The verb estudiar derives from Latin studium, via Old Spanish, and today denotes the act of studying or learning, whether in formal education or other contexts. The form "estudian" is a standard example of subject-verb agreement in Spanish, illustrating how verbs inflect for person and number.