Were preparing (es. Preparaban)

Translation into English

preparaban la cena.

They were preparing dinner.

Ellos preparaban la fiesta para mi cumpleaños.

They were preparing the party for my birthday.

En la escuela, los estudiantes preparaban los exámenes.

At school, the students were preparing the exams.

Cuando llegué, ellos ya preparaban la presentación para la reunión.

When I arrived, they were preparing the presentation for the meeting.

Mis amigos preparaban una sorpresa para el aniversario de nuestra relación.

My friends were preparing a surprise for the anniversary of our relationship.

Mientras los cocineros preparaban la comida, los camareros organizaban las mesas.

While the cooks were preparing the food, the waiters were setting up the tables.

En la víspera del evento, los organizadores preparaban un meticuloso plan de contingencia.

On the eve of the event, the organizers were preparing a meticulous contingency plan.

Mientras el grupo preparaban sus argumentos, el debate se tornaba cada vez más intenso.

As the group were preparing their arguments, the debate became increasingly intense.

Los académicos, que preparaban investigaciones de alto nivel, discutían sobre los métodos más eficaces.

The academics, who were preparing high-level research, were discussing the most effective methods.