Extended List of Irregular Verbs provides a list of irregular verbs and defines the difference between regular and irregular verbs.

Regular and Irregular Verbs

Regular verbs form their principal parts differently to irregular verbs.

The four principal parts are present, present participle, past, and past participle.

Regular verbs form past and past participle by adding ed to the present.

However, irregular verbs form their past and past participle irregularly.

Extended List of Irregular Verbs

Present	Present Participle	Past	Past Participle
beat	beating	beat	beaten
begin	beginning	began	begun
bind	binding	bound	bound
bite	biting	bit	bitten
blow	blowing	blew	blown
break	breaking	broke	broken
bring	bringing	brought	brought
catch	catching	caught	caught
choose	choosing	chose	chosen
come	coming	came	came
deal	dealing	dealt	dealt
do	doing	did	done
drink	drinking	drank	drunk
eat	eating	ate	eaten
fall	falling	fell	fallen
feel	feeling	felt	felt
fight	fighting	fought	fought
fling	flinging	flung	flung
fly	flying	flew	flown
forget	forgetting	forgot	forgotten
freeze	freezing	froze	frozen
get	getting	got	got
give	giving	gave	given
go	going	went	gone
grow	growing	grew	grown
have	having	had	had
hide	hiding	hid	hidden
keep	keeping	kept	kept
know	knowing	knew	known
lay	laying	laid	laid
lead	leading	led	led
leave	leaving	left	left
lend	lending	lent	lent
meet	meeting	met	met
pay	paying	paid	paid
put	putting	put	put
quit	quitting	quit	quit
read	reading	read	read
ride	riding	rode	ridden
ring	ringing	rang	rung
rise	rising	rose	risen
run	running	ran	run
say	saying	said	said
see	seeing	saw	seen
sell	selling	sold	sold
send	sending	sent	sent
set	setting	set	set
shake	shaking	shook	shaken
shine	shining	shone	shone
shoot	shooting	shot	shot
show	showing	showed	shown
sing	singing	sang	sung
sink	sinking	sank	sunk
sit	sitting	sat	sat
sleep	sleeping	slept	slept
speak	speaking	spoke	spoken
spin	spinning	spun	spun
spread	spreading	spread	spread
spring	springing	sprang	sprung
stand	standing	stood	stood
stick	sticking	stuck	stuck
sting	stinging	stung	stung
strike	striking	struck	struck
swim	swimming	swam	swum
take	taking	took	taken
teach	teaching	taught	taught
tear	tearing	tore	torn
tell	telling	told	told
think	thinking	thought	thought
throw	throwing	threw	thrown
wear	wearing	wore	worn
win	winning	won	won
wring	wringing	wrung	wrung
write	writing	wrote	written