Learn irregular verbs effectively.

Forms of irregular verbs - Exercise 1, Exercise 2, Exercise 3

Here you will find irregular verbs listed to their forms. So you can learn them more effectively.

Question: Must I write -ought or -aught?
Answer: If in the infinitive is an -a, write -aught, otherwise -ought.

all 3 forms are similar

infinitive	simple past	past participle
bet*	bet	bet
burst	burst	burst
cost	cost	cost
cut	cut	cut
hit	hit	hit
hurt	hurt	hurt
let	let	let
put	put	put
read	read	read
set	set	set
shut	shut	shut

Infinitive and Simple Past are similar

infinitive	simple past	past participle
beat	beat	beaten

Infinitive and past participle are similar

infinitive	simple past	past participle
come	came	come
run	ran	run
become	became	become

Simple Past and past participle are similar

infinitive	simple past	past participle
bring	brought	brought
build	built	built
buy	bought	bought
catch	caught	caught
deal	dealt	dealt
feed	fed	fed
feel	felt	felt
fight	fought	fought
find	found	found
get	got	got
hang	hung	hung
have	had	had
hear	heard	heard
hold	held	held
keep	kept	kept
lay	laid	laid
lead	led	led
leave	left	left
lend	lent	lent
light*	lit	lit
lose	lost	lost
make	made	made
mean	meant	meant
meet	met	met
pay	paid	paid
say	said	said
sell	sold	sold
send	sent	sent
shine	shone	shone
shoot	shot	shot
sit	sat	sat
sleep	slept	slept
slide	slid	slid
spend	spent	spent
stand	stood	stood
stick	stuck	stuck
sweep	swept	swept
swing	swung	swung
teach	taught	taught
tell	told	told
think	thought	thought
understand	understood	understood
win	won	won

all 3 forms are different

infinitive	simple past	past participle
be	was/were	been
begin	began	begun
blow	blew	blown
break	broke	broken
choose	chose	chosen
do	did	done
draw	drew	drawn
drink	drank	drunk
drive	drove	driven
eat	ate	eaten
fall	fell	fallen
fly	flew	flown
forget	forgot	forgotten
freeze	froze	frozen
give	gave	given
go	went	gone
grow	grew	grown
hide	hid	hidden
know	knew	known
lie	lay	lain
ride	rode	ridden
ring	rang	rung
rise	rose	risen
see	saw	seen
shake	shook	shaken
show*	showed	shown
sing	sang	sung
sink	sank	sunk
speak	spoke	spoken
spring	sprang	sprung
steal	stole	stolen
swear	swore	sworn
swim	swam	swum
take	took	taken
tear	tore	torn
throw	threw	thrown
wake	woke	woken
wear	wore	worn
weave	wove	woven
write	wrote	written

* regular form (+ -ed) also possible.

Some of the verbs in our table are merely prefixed forms of an irregular verb. Thus, if you learn only a single irregular verb, you can be certain that any other prefixed variant on that verb is irregular in the exact same manner. Look at the following examples:

bid - forbid
cast - broadcast - forecast
go - forego - undergo
get - forget
stand - understand - withstand
tell - foretell
take - overtake - undertake

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	simple past	past participle
burn	burnt	burnt
dream	dreamt	dreamt
learn	learnt	learnt

Thanks to Brian.