IRREGULAR
AM- IS - ARE
WAS- WERE
MAKE
MADE
TAKE
TOOK
ANSWER
ANSWERED
WALK
WALKED
DO
DID
RIDE
RODE
THINK
THOUGHT
ASK
ASKED
WATCH
WATCHED
DRAW
DREW
SWIM
SWAM
BEGIN
BEGAN
CLOSE
CLOSED
TRAVEL
TRAVELLED
EAT
ATE
BUY
BOUGHT
FORGET
FORGOT
ENJOY
ENJOYED
WAIT
WAITED
GO
WENT
HAVE
HAD
SPEAK
SPOKE
JUMP
JUMPED
WORK
WORKED