Begin
Began-begun
Ring
Rang-rung
Blow
Blew-blown
Sing
Sang-sung
Draw
Drew-Drawn
Throw
Threw-thrown
Grow
Grew-grown
Swing
Swung-swung
Know
Knew-known
Fly
Flew-flown
Swim
Swam-swum
Drink
Drank-drunk