-ed
rent
rented /id/
sing
singing
small
smaller
fast
fastest
run
runs /z/
call
called /d/
laugh
laughing
kick
long
longest
hop
hops /s/
save
saved /d/
jump
jumping
quick
quicker
hard
hardest
frog
frogs /z/
blend
blended /id/
stall
stalling
cool
cooler
dull
dullest
path
paths /s/
honk
honked /t/
chill
chilling
strong
stronger
kind
kindest
drill
drills /z/