Preterite vs Imperfect

Question 1

When is preterite used?

Answer 1

Completed actions in the past
Action that interrupts
Series of actions

Question 2

When is imperfect used?

Answer 2

Repeated actions in the past
Descriptions in the past
Simultaneous actions in the past
Age
Time
Date

Question 3

Preterite verb endings (AR)

Answer 3

yo: e
tu: aste
el/ella: o
nosotros: amos
usted: asteis
ellos: aron

Question 4

Preterite verb endings (ER/IR)

Answer 4

yo: i
tu: iste
el/ella: io
nosotros: imos
usted: isteis
ellos: ieron

Question 5

Imperfect verb endings (AR)

Answer 5

yo: aba
tu: abas
el/ella: aba
nosotros: abamos
usted: abais
ellos: aban

Question 6

Imperfect verb endings (ER/IR)

Answer 6

yo: ia
tu: ias
el/ella: ia
nosotros: iamos
usted: iais
ellos: ian