Infinitive 不定式		Past tense 过去式		Past participle 过去分词		Infinitive 不定式		Past tense 过去式	Past participle 过去分词
shine		shone, *shined		shone, *shined		string		strung	strung
shit		shit, shat; [BrE		shit, shat; [BrE		strive		strove, *strived	striven, *strived
ftsbbrr		also shitted)		also shitted)		sublet		sublet	sublet
shoe		shod		shod		swear		swore	sworn
shoot		shot		shot		sweep		swept	swept
show		showed		shown, *showed		swell		swelled	swollen, swelled
shrink		shrank, shrunk		shrunk		swim		swam	swum
shut		shut		shut		swing		swung	swung
simulcast		simulcast		simulcast		take		took	taken
sing		sang		sung		teach		taught	taught
sink		sank, *sunk		sunk		tear		tore	torn
sit		sat		sat		telecast		telecast	telecast
slay		slew		slain		tell		told	told
sleep		slept		slept		think		thought	thought
slide		slid		slid		throw		threw	thrown
sling		slung		slung		thrust		thrust	thrust
slink		slunk		slunk		tread		trod	trodden, trod
slit		slit		slit		typecast		typecast	typecast
smell		smelled; [BrE		smelled; (BrE		typeset		typeset	typeset
		also smelt)		also smelt)		unbend		unbent	unbent
smite		smote		smitten		underbid		underbid	underbid
sow		sowed		sown, sowed		undercut		undercut	undercut
speak		spoke		spoken		undergo		underwent	undergone
speed		speeded,*sped		speeded,*sped		underlie		underlay	underlain
spell		spelt, spelled		spelt, spelled		underpay		underpaid	underpaid
spend		spent		spent		undersell		undersold	undersold
spill		spilled; {BrE		spilled; [BrE		understand		understood	understood
		also spilt)		also spilt)		undertake		undertook	undertaken
spin		spun		spun		underwrite		underwrote	underwritten
spit		spat; (also spit		spat; {also spit		undo		undid	undone
		especially in		especially in		unfreeze		unfroze	unfrozen
		NAmB)		NAmE)		unwind		unwound	unwound
split		split		split		uphold		upheld	upheld
spoil		spoiled; [BrE		spoiled; [BrE		upset		upset	upset
		also spoilt)		also spoilt)		wake		woke	woken
spotlight		spotlit,		spotlit,		waylay		waylaid	waylaid
		★spotlighted		★spotlighted		wear		wore	worn
spread		spread		spread		weave		wove, *weaved	woven, *weaved
spring		sprang; [NAmE		sprung		wed		wedded, wed	wedded, wed
		also sprung)		)lntrii9i		weep		wept	wept
stand		stood		stood		wet		wet, wetted	wet, wetted
stave		staved, *stove		staved, *stove		win		won	won
steal		stole		stolen		wind^2 /waind/		wound /waund/ wound /waund/
stick	stuck		stuck		withdraw		withdrew
sting	stung		stung		withhold		withheld
stink	stank, stunk		stunk		withstand		withstood
strew	strewed		strewed, strewn		wring		wrung
stride strike	strode struck		struck; [NAmE also stricken)		write		wrote

withdrawn

withheld

withstood

wrung

written

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