feel
felt - felt
sit
sat - sat
swim
swam /swæm/ - swum /swʌm/
spend
spent - spent
sleep
slept - slept
eat
ate /eɪt/ - eaten /ˈiːt(ə)n/
see
saw - seen
drink
drank /dræŋk/ - drunk /drʌŋk/
fall
fell -fallen
find
found - found
forget
forgot - forgotten
send
sent - sent
fly
flew /fluː/ - flown /fləʊn/
read
read /red/ - read /red/
selll
sold -sold
speak
spoke - spoken