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