Here's a breakdown:
* Ongoing actions: The imperfect describes actions that were happening continuously in the past, similar to the English "was/were + verb-ing."
* Example: "Estaba leyendo un libro cuando escuché un ruido." (I was reading a book when I heard a noise.)
* States of being: The imperfect describes a condition or situation that existed in the past.
* Example: "Era un día soleado." (It was a sunny day.)
* Repeated actions: The imperfect describes actions that happened regularly or habitually in the past, similar to the English "used to + verb."
* Example: "Iba al cine todos los viernes." (I used to go to the movies every Friday.)
In narration, the imperfect often sets the scene, provides background information, and helps the reader understand the context of events. It's particularly useful for describing the setting, the characters' feelings, and their actions leading up to the main event.
Example:
> "Era un día frío y ventoso. Llovía a cántaros. Yo estaba sentado en el autobús, mirando por la ventana. Pensaba en el largo viaje que me esperaba. De repente, el autobús frenó de golpe. Me asusté y caí de mi asiento."
As you can see, the imperfect tenses in this paragraph create a vivid picture of the scene and the characters' thoughts and actions.
While the imperfect tense doesn't directly translate to "narration past," it plays a crucial role in Spanish narration by providing context, describing ongoing events, and setting the stage for the main action.