Any verb that does not add -ed or -d to its past tense form is considered an irregular verb. The word ‘irregular makes it sound like these verbs are rare, but you see them all the time in writing and in conversation.

Present SimplePast SimplePast ParticiplePresent Participle
bewas/werebeenbeing
becomebecamebecomebecoming
beginbeganbegunbeginning
blowblewblownblowing
breakbrokebrokenbreaking
bringbroughtbroughtbringing
buildbuiltbuiltbuilding
eatateeateneating
fallfellfallenfalling
feedfedfedfeeding
feelfeltfeltfeeling
fightfoughtfoughtfighting
buyboughtboughtbuying
catchcaughtcaughtcatching
choosechosechosenchoosing
comecamecomecoming
costcostcostcosting
cutcutcutcutting
digdugdugdigging
dodiddonedoing
drawdrewdrawndrawing
drinkdrankdrunkdrinking
drivedrovedrivendriving
hanghunghunghanging
findfoundfoundfinding
flyflewflownflying
forbidforbadeforbiddenforbidding
forgetforgotforgottenforgetting
forgiveforgaveforgivenforgiving
freezefrozefrozenfreezing
getgotgotgetting
gowentgonegoing
growgrewgrowngrowing
givegavegivengiving
makemademademaking
meanmeantmeantmeaning
meetmetmetmeeting
paypaidpaidpaying
putputputputting
havehadhadhaving
hearheardheardhearing
hidehidhiddenhiding
hithithithitting
holdheldheldholding
hurthurthurthurting
keepkeptkeptkeeping
knowknewknownknowing
laylaidlaidlaying
leadledledleading
leaveleftleftleaving
lendlentlentlending
letletletletting
lielaylainlying
lightlitlitlighting
readreadreadreading
rideroderiddenriding
ringrangrungringing
riseroserisenrising
runranrunrunning
showshowedshownshowing
shutshutshutshutting
speakspokespokenspeaking
spendspentspentspending
standstoodstoodstanding
stealstolestolenstealing
stickstuckstucksticking
teachtaughttaughtteaching
telltoldtoldtelling
thinkthoughtthoughtthinking
loselostlostlosing
saysaidsaidsaying
seesawseenseeing
sellsoldsoldselling
sendsentsentsending
setsetsetsetting
shakeshookshakenshaking
shineshoneshoneshining
shootshotshotshooting
singsangsungsinging
sitsatsatsitting
sleepsleptsleptsleeping
strikestruckstruckstriking
throwthrewthrownthrowing
wakewokewokenwaking
writewrotewrittenwriting
winwonwonwinning
wearworewornwearing
understandunderstoodunderstoodunderstanding

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