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