不規則動詞
sleep - slept - slept
slide - slid - slid (slidden)
smell - smelt - smelt (規則変化もあり: smell - smelled - smelled)
spell - spelt - spelt (規則変化もあり: spell - spelled - spelled)
spend - spent - spent
spit - spat (spit) - spat (spit)
stand - stood - stood
stick - stuck - stuck
sting - stung - stung
strike - struck - struck
sweep - swept - swept
swing - swung - swung
teach - taught - taught
tell - told - told
think - thought - thought
understand - understood - understood
weep - wept - wept
win - won - won
wind - wound - wound