TEACH
taught, taught
BECOME
became, become
FLY
flew, flown
KEEP
kept, kept
MAKE
made, made
SWIM
swam, swum
BUY
bought, bought
GIVE
gave, given
HEAR
heard, heard
UNDERSTAND
understood, understood
THINK
thought, thought
GO
went, gone
READ
read, read
SEND
sent, sent
TAKE
took, taken
WEAR
wore, worn
WRITE
wrote, written
DRINK
drank, drunk
HAVE
had, had
MEET
met, met
COME
came, come
SAY
said, said
BEGIN
began, begun
EAT
ate, eaten
DO
did, done