wake
woke-woken
ring
rang-rung
sleep
slept-slept
teach
taught-taught
sell
sol-sold
read
read-read
spend
spent-spent
sing
sang-sung
throw
threw-thrown
write
wrote-written
tell
told-told
speak
spoke-spoken
say
said-said
see
saw-seen
Learn
learnt-learnt
pay
paid-paid
make
made-made
swim
swam-swum
meet
met-met
run
ran-run
think
thought-thought
understand
understood-understood
take
took-taken
leave
left-left