stand
stood-stood
think
thought-thought
show
showed-shown
take
took-taken
tell
told-told
shake
shook- shaken
sing
sang-sung
understand
understood-understood
shine
shone-shone
spend
spent-spent
shoot
shot-shot
throw
threw-thrown
write
wrote-written
sit
sat-sat
wake
woke-woken
win
won-won
smell
smelt-smelt
swim
swam-swum
sleep
slept-slept
wear
wore-worn
speak
spoke-spoken