IRREGULAR PAST PARTICIPLES
DRINK
DRUNK
SLEEP
SLEPT
BE
BEEN
BUY
BOUGHT
DO
DONE
FLY
SWIM
SWUM
TAKE
TAKEN
READ
READ
RIDE
RIDDEN
WEAR
WORN
SEE
SEEN
HEAR
HEARD
WRITE
WRITTEN
SPEAK
SPOKEN
CUT
CUT
STAND
STOOD
BRING
BROUGHT
FEED
FED
SELL
SOLD
FALL
FALLEN
THINK
THOUGHT
KEEP
KEPT
MEET
MET
GO
GONE/BEEN