What is an irregular verb?

Irregular Verbs: Regular verbs are the verbs that change their present form to past and past participle by the addition of either e or ed in the end. Irregular verbs are those verbs that don’t follow the spelling patterns of e, ied, or ed for past simple and past participle forms, Here is the complete list of irregular verbs: a- : for abide, arise, awake, see bide, rise, wakernbe (am, is, are) – was, were – been be- : for become, befall, beset, etc. see come, fall, set, etc. bear – bore – borne [spelt born in passive and adjectival uses relating to birth] beat – beat – beaten beget – begot – begot(ten) [Biblical past tense: begat] begin – began – begun bend – bent – bent bet – bet – bet [past tense and participle also sometimes betted] beware – defective verb [bid – bid – bid [as in an auction] bid – bade/bid – bidden/bid [meaning "request"] bide – bided/bode – bided/bidden [but abide mostly uses the regular forms only] bind – bound – bound bite – bit – bitten bleed – bled – bled blow – blew – blown break – broke – broken breed – bred – bred bring – brought – brought Here is the complete list of irregular verbs: build – built – built burn – burnt/burned – burnt/burned burst – burst – burst buy – bought – bought can – could – could [defective; cast – cast – cast [prefixed forms broadcast, forecast, etc. sometimes take -ed[4]] catch – caught – caught choose – chose – chosen clad – clad/cladded – clad/cladded [clad is also sometimes used as past form of clothe] cleave – clove/cleft – cloven/cleft [but regular when rnmeaning "adhere"] cling – clung – clung come – came – come cost – cost – cost [but regular when meaning "calculate rnthe cost of"] creep – crept/creeped – crept/creeped crow – crowed/crew – crowed [crew normally used only of a cock's crowing] cut – cut – cut dare – regular except for possible third person singular rnpresent dare (see anomalous cases above) deal – dealt – dealt dig – dug – dug dive – dived/dove – dived [the form dove is chiefly American] do (does /dʌz/) – did – done drag – dragged/drug – dragged/drug [the form drug is rnchiefly dialectal] draw – drew – drawn dream – dreamed/dreamt – dreamed/dreamt drink – drank – drunk drive – drove – driven dwell – dwelt/dwelled – dwelt/dwelled eat – ate – eaten fall – fell – fallen feed – fed – fed feel – felt – felt fight – fought – fought find – found – found fit – fit/fitted – fit/fitted flee – fled – fled fling – flung – flung fly – flew – flown for(e)- : for forgo, foresee, etc. see go, see, etc. forbid – forbade/forbid – forbidden forget – forgot – forgotten forsake – forsook – forsaken freeze – froze – frozen get – got – gotten/got [past participle got in British English, gotten in American, but see have got] gild – gilded/gilt – gilded/gilt give – gave – given go – went – gone [see also have been] grind – ground – ground grow – grew – grown hang – hung/hanged – hung/hanged [the form hanged is more common in the sense of execution by hanging] have (has) – had – had hear – heard – heard hew – hewed – hewn/hewed hide – hid – hidden hit – hit – hit hoist – hoist/hoisted – hoist/hoisted hold – held – held hurt – hurt – hurt in- : for inlay, input, etc. see lay, put, etc. inter- : for interlay, interweave, etc. see lay, weave, rnetc. keep – kept – kept kneel – knelt/kneeled – knelt/kneeled knit – knit/knitted – knit/knitted know – knew – known lay – laid – laid lead – led – led lean – leaned/leant – leaned/leant leap – leaped/leapt – leaped/leapt learn – learned/learnt – learned/learnt leave – left – left lend – lent – lent let – let – let lie – lay – lain [but regular when meaning "tell an rnuntruth"] light – lit/lighted – lit/lighted lose – lost – lost make – made – made may – might mean – meant – meant meet – met – met mis- : for misspeak, mistake, etc. see speak, take, etc. mow – mowed – mowed/mown need – regular except for possible third person singular present need (see anomalous cases above) off- : for offset see set, etc.rnought – defective [ out- : for outbid, output, etc. see bid, put, etc. over- : for overbid, overdo, etc. see bid, do, etc. pay – paid – paid [but sometimes spelt regularly when rnmeaning "let out" (rope etc.)] plead – pleaded/pled – pleaded/pled pre- : for prepay, preset, etc. see pay, set, etc. prove – proved – proved/proven put – put – put quit – quit – quit re- : for redo, remake, etc. see do, make, etc. read /riːd/ – read /rɛd/ – read /rɛd/ rend – rent – rent rid – rid/ridded – rid/ridded/ridden ride – rode – ridden ring – rang – rung rise – rose – risen run – ran – run saw – sawed – sawn/sawed say (says /sɛz/) – said – said see – saw – seen seek – sought – sought sell – sold – sold send – sent – sent set – set – set sew – sewed – sewn/sewed shake – shook – shaken shall – should – should [defective; shear – sheared/shore – shorn/sheared shed – shed – shed shine – shone/shined – shone/shined shit – shat/shit/shitted – shat/shit/shitted shoe – shoed/shod – shoed/shod shoot – shot – shot show – showed – shown/showed shrink – shrank/shrunk – shrunk shut – shut – shut sing – sang – sung sink – sank – sunk sit – sat – sat slay – slew/slayed – slain/slayed sleep – slept – slept slide – slid – slid sling – slung – slung slink – slunk – slunk slit – slit – slit smell – smelled/smelt – smelled/smelt smite – smote – smitten sneak – sneaked/snuck – sneaked/snuck [snuck is chiefly American, and it is regarded as informal] sow – sowed – sown/sowed speak – spoke – spoken speed – sped/speeded – sped/speeded spell – spelled/spelt – spelled/spelt spend – spent – spent spill – spilled/spilt – spilled/spilt spin – spun – spun spit – spat/spit – spat/spit [the form spit rather than rnspat is common in America] split – split – split spoil – spoiled/spoilt – spoiled/spoilt spread – spread – spread spring – sprang/sprung – sprung stand – stood – stood stave – staved/stove – staved/stove steal – stole – stolen stick – stuck – stuck sting – stung – stung stink – stank – stunk strew – strewed – strewn/strewed stride – strode – stridden/strode strike – struck – struck string – strung – strungrnstrive – strove/strived – striven/strived swear – swore – swo rnsweat – sweated/sweat – sweated/sweat sweep – swept – swept swell – swelled – swollen/swelled swim – swam – swum swing – swung – swung take – took – taken teach – taught – taught tear – tore – to rntell – told – told think – thought – thought throw – threw – thrown thrust – thrust/thrusted – thrust/thrusted tread – trod – trodden/trod un- : for unbend, unweave, etc. see bend, weave, etc. under- : for underlie, undergo, understand, etc. see lie, go, stand, etc. up- : for upset see set, etc. wake – woke – woken wear – wore – wo rnweave – wove – woven wed – wed/wedded – wed/wedded weep – wept – wept wet – wet/wetted – wet/wetted will – would – would [defective; win – won – won wind – wound – wound [but regular in the meanings connected with air and breath] with- : for withdraw, withhold, withstand, see draw, hold, stand wring – wrang/wrung – wrung write – wrote – written rnSunil Rajpal-http://engtuto.com/irregular-verbs/