A
PLAY
PLAYED
STUDY
STUDIED
LISTEN
LISTENED
STOP
STOPPED
CLOSE
CLOSED
DRAW
DRAWN
SLEEP
SLEPT
PAY
PAID
EAT
EATEN
DRINK
DRUNK
BUY
BOUGHT
SPEAK
SPOKEN
WRITE
WRITTEN
CUT
CUT
FORGET
FORGOTTEN
BUILD
BUILT
SWIM
SWUM
BREAK
BROKEN
UNDERSTAND
UNDERSTOOD
STEAL
STOLEN
THROW
THROWN
TEACH
TAUGHT
RING
RUNG
FREEZE
FROZEN
THINK
THOUGHT