What Does The Preterite Tense Indicate?
Specific Events That Happened In The Past
What Does The Imperfect Tense Indicate?
Non-specific Past Events That Do Not Focus On...
Comprar (P)
Compré, Compraste, Compró, Compramos, Compr...
Vender (P)
Vendí, Vendiste, Vendió, Vendimos, Venistei...