Irregular verbs

infinitive	simple past	past participle
be	was/were	been
bear	bore	borne/born (AE)
beat	beat	beaten
become	became	become
begin	began	begun
bend	bent	bent
bet*	bet	bet
bid	bid, bade	bid, bidden
bind	bound	bound
bite	bit	bitten
bleed	bled	bled
blow	blew	blown
break	broke	broken
breed	bred	bred
bring	brought	brought
broadcast	broadcast	broadcast
build	built	built
burst*	burst	burst
bust*	bust	bust
buy	bought	bought
cast	cast	cast
catch	caught	caught
choose	chose	chosen
cling	clung	clung
come	came	come
cost	cost	cost
creep	crept	crept
cut	cut	cut
deal	dealt	dealt
dig	dug	dug
dive	dived/dove(AE)	dived
do	did	done
draw	drew	drawn
drink	drank	drunk
drive	drove	driven
eat	ate	eaten
fall	fell	fallen
feed	fed	fed
feel	felt	felt
fight	fought	fought
find	found	found
flee	fled	fled
fling	flung	flung
fly	flew	flown
forbid	forbade, forbad	forbidden
forecast*	forecast	forecast
forget	forgot	forgotten
forsake	forsook	forsaken
freeze	froze	frozen
get	got	got, gotten (AE)
give	gave	given
grind	ground	ground
go	went	gone
grow	grew	grown
hang	hung	hung
have	had	had
hear	heard	heard
hide	hid	hidden
hit	hit	hit
hold	held	held
hurt	hurt	hurt
keep	kept	kept
know	knew	known
lay	laid	laid
lead	led	led
leave	left	left
lend	lent	lent
let	let	let
lie	lay	lain
light*	lit	lit
lose	lost	lost
make	made	made
mean	meant	meant
meet	met	met
pay	paid	paid
prove*	proved	proven
put	put	put
quit*	quit	quit
read	read	read
rid	rid	rid
ride	rode	ridden
ring	rang	rung
rise	rose	risen
run	ran	run
say	said	said
see	saw	seen
seek	sought	sought
sell	sold	sold
send	sent	sent
set	set	set
sew*	sewed	sewn
shake	shook	shaken
shear*	sheared	shorn
shed	shed	shed
shine	shone	shone
shoot	shot	shot
show*	showed	shown
shut	shut	shut
sing	sang	sung
sink	sank	sunk
sit	sat	sat
slay	slew	slain
sleep	slept	slept
slide	slid	slid
sling	slung	slung
slink	slunk	slunk
slit	slit	slit
sow	sowed	sown
speak	spoke	spoken
speed*	sped	sped
spend	spent	spent
spin	spun	spun
spit	spat, spit	spat, spit
split	split	split
spread	spread	spread
spring	sprang	sprung
stand	stood	stood
steal	stole	stolen
stick	stuck	stuck
sting	stung	stung
stink	stank, stunk	stunk
stride	strode	stridden
strike	struck	struck
string	strung	strung
strive	strove	striven
swear	swore	sworn
sweep	swept	swept
swell*	swelled	swollen
swim	swam	swum
swing	swung	swung
take	took	taken
teach	taught	taught
tear	tore	torn
tell	told	told
think	thought	thought
thrive*	throve	thrived
throw	threw	thrown
thrust	thrust	thrust
tread	trod	trodden, trod
understand	understood	understood
wake*	woke	woken
wear	wore	worn
weave	wove	woven
weep	wept	wept
wet*	wet	wet
win	won	won
wind	wound	wound
wring	wrung	wrung
write	wrote	written

* regular form (+ -ed) also possible.

The trend, in English, and especially in American English, is to standardize the irregular verbs. We do not foresee all the irregular verbs ever being standardized, but some of the more minor variations in less commonly used words will probably disappear in the next genration or two.

The following English irregular verbs are now obsolete and use the standard past and participle forms (-ed).

infinitive
burn
dream
dwell
kneel
lean
learn
mow
smell
spell
spill
spoil
trust

Download (pdf-files)

irregular verbs 1
irregular verbs 2
irregular verbs 3

Thanks to Brian.