keep
kept - kept
deal
dealt - dealt
burn
burnt - burnt
spend
spent - spent
sweep
swept - swept
learn
learnt - learnt
lend
lent - lent
dream
dreamt - dreamt
spoil
spoilt - spoilt
feel
felt - felt
spill
spilt - spilt
sleep
slept - slept
mean
meant - meant
send
sent - sent
spell
spelt - spelt
build
built - built
smell
smelt - smelt