Like a j. kind of like “just” . I don’t think I can explain it any better, pardon.
You use preterite to describe an action that took place and was fully done, Ex. José entro a la habitación, you can see John went into the room, he completed the action. On the other hand, imperfect tense doesn't specificate if the action was completed, Ex. José entraba a la habitación, it doesn't tell us if José fully entered the room.
The first one ''Correr'' is run. And ''Parque" is park.
