iba -- imperfecto, habitual or repeated action
visitaba -- imperfecto, habitual action
se puso -- pretérito, sudden change
contó -- pretérito, completed action
contaba -- imperfecto, two simultaneous ongoing actions
iban -- imperfecto, uncompleted (interrupted) action without apparent beginning or end
se descompuso -- pretérito, completed action
regresó -- pretérito, completed action
llevó -- pretérito, completed action
estaba -- imperfecto, past progressive
daba -- imperfecto, interrupted action
iba -- imperfecto, habitual or repeated action
llamó -- pretérito, completed or discrete action
fuiste --pretérito, single, discrete action
tenías -- imperfecto, ongoing condition in the past, verb of state
quería -- imperfecto, to want, ongoing condition in the past
tenía -- imperfecto, ongoing condition in the past, verb of state
cambió -- pretérito, single, discrete, completed action
saqué -- pretérito, single, discrete, completed action
venían -- imperfecto, habitual action
vinieron -- pretérito, changed or completed action
perdió -- pretérito, completed action
puso -- pretérito, completed action, narration of events in a series
lavó -- pretérito, completed action, narration of events in a series
cocinó -- pretérito, completed action, narration of events in a series
recibió -- pretérito, single completed action
escribió -- pretérito, single completed action
tenía -- imperfecto, ongoing physical condition, verb of state
conversaba -- imperfecto, ongoing, simultaneous events
serviá -- imperfecto, ongoing, simultaneous events
eran -- imperfecto, expression of time in the past, verb of state
fui -- pretérito, single completed action or event