spin
spun spun
spit
spat/spit spit
split
split split
spoil
spoilt/spoiled
spread
spread
spring
sprang sprung
stand
stood
steal
stole stolen
stick
stuck
stink
stank stunk
strike
struck struck/stricken
string
strung
swear
swore sworn
sweat
sweat
sweep
swept
swell
swelled swollen
swim
swam swum
swing
swung
take
took taken
teach
taught