estudiaven

In a sentence

• Els alumnes estudiaven cada vespre a la biblioteca.

  The students studied every evening at the library.

  Here, 'estudiaven' is used in the past imperfect tense to indicate a habitual action that occurred in the past.

• Quan jo era petit, els meus germans estudiaven matemàtiques a casa.

  When I was young, my brothers studied mathematics at home.

  In this sentence, 'estudiaven' describes an ongoing action in the past within a specific context—what the speaker remembers from their youth.

• Estudiaven sense descans perquè tenien exàmens difícils.

  They studied without rest because they had difficult exams.

  Here, 'estudiaven' is used to indicate an action carried out continuously in the past with a specific purpose in this context.