A
pay
paid
sit
sat
sell
sold
send
sent
show
shown
sing
sung
sleep
slept
speak
spoken
spend
spent
stand
stood
steal
stolen
swim
swum
take
taken
tell
told
understand
understood
wake
woken
wear
worn
win
won
write
written
grow
grown
buy
bought
fight
fought
catch
caught
think
thought
teach
taught