Pretérito imperfecto

"used to…" / was + -ing (background actions and habits)

Verbos -AR
Verbos -ER
Verbos -IR
Pretérito imperfecto ≈ "used to…" / was + -ing (background/habit)
Pronombre-AR (hablar)-ER (comer)-IR (vivir)
yohablabacomíavivía
hablabascomíasvivías
él/ellahablabacomíavivía
nosotroshablábamoscomíamosvivíamos
vosotroshablabaiscomíaisvivíais
elloshablabancomíanvivían
💡 Tip for English speakers Use for ONGOING or REPEATED past actions ("I used to eat…", "she was studying…"). -ER and -IR share identical endings! No stem-changes exist in this tense — even stem-changing verbs are fully regular here.
⚡ Ver irregulares