preterite is "i did, i studied, i ate" ect, it talks about something short term
eg: comí= i ate
imperfect is long term "i used to do, i used to play, i used to eat" etc
eg: comía = i use to eat
Preterite is the normal past tense talking about events. Eg i went to the park with my sister = Fui al parque con mi hermana.
Fui in this case is the preterite
For imperfect it is what you used to do before but do not do any more. Usually ends in
aba
abas
abamos
abais
aban
(for ar endings)
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