Question

Briefly explain what is wrong with this sentence and how you know:

Anoche, me registraba en un hotel y descansaba por la noche.


Example with a different sentence:

Hace dos días, tomaba un examen.

Tomaba is imperfect, it should be preterite because it happened once two days ago.

Answer 1

Registraba and descansaba are imperfect. They should be preterite instead because it happened last night—anoche—at a specific time.

Corrected sentence: Anoche, me registré en un hotel y descansé por la noche.