Answer:
past. (Pretérito imperfecto)
Explanation:
The past imperfect indicative is used in Spanish to express courses of past actions whose beginning and end are not specified. In the same way, it serves to emphasize the continuity or regularity of an action in the past.
For example:
A Rubén le encantaba el fútbol. Se pasaba el día corriendo detrás de la pelota. Entrenaba con su equipo los martes y los jueves.