Regular Past Tense - Er, Ar, Ir

Question 1

ComER (to eat)

Answer 1

Comí - I ate
Comiste - you ate
Comió - he/she/it ate
Comimos - we ate
Comisteis - you ate (plural)
Comieron - they ate

Question 2

BailAR (to dance)

Answer 2

Bailé - I danced
Bailaste - you danced 
Bailó - he/she/it danced
Bailamos - we danced
Bailasteis - you danced (plural)
Bailaron - they danced

Question 3

VivIR (to live)

Answer 3

Viví - I lived
Viviste - you lived
Vivió - he/she/it lived
Vivimos - we lived
Vivisteis - you lived (plural)
Vivieron - they lived