listen -> listened -listened
speak -> spoke - spoken
read -> read - read
write -> wrote - writen
eat -> ate - eaten
drink -> drank-drunk
sleep -> slept-slept
stay -> stayed-stayed
play -> played - played
buy -> bought-bought
borrow -> borrowed - borrowed
remember -> remembered - remembered
sing -> sang - sung
clean -> cleaned - cleaned
wash -> washed - washed
watch -> watched - watched
decorate -> decorated - decorated
spell -> spelled/spelt - spelled/spelt
send -> sent - sent