When do I use the preterite and imperfect?
As a general rule, the preterite is used when there is a finite beginning and end. If there is any ambiguity then use the imperfect. There are also specific rules for each tense.
If you are describing a person or a place then always use the imperfect but if you are describing what happened (an action) then you would use the preterite.
FP
Related Spanish GCSE answers
All answers ▸¿Cuándo se utiliza el pretérito perfecto, el imperfecto y el pretérito? = When do you use the perfect, the imperfect and the indicative past?
Que sueles hacer en tus vacaciones?
Translate into Spanish - I went to the cinema yesterday and I did not do my homework.
How do I respond to an essay question in Spanish?