# https://www.englishpage.com/irregularverbs/irregularverbs2.html#f
irregular_verbs = {
'abide': ['abided / abode', 'abided'],
'alight': ['alighted / alit', 'alighted / alit'],
'arise': ['arose', 'arisen'],
'awake': ['awakened / awoke', 'awakened / awoken'],
'backbite': ['backbit', 'backbitten'],
'backslide': ['backslid', 'backslidden / backslid'],
'be':  ['was / were', 'been'],
'am':  ['was / were', 'been'],
'is':  ['was / were', 'been'],
'are':  ['was / were', 'been'],
'bear': ['bore', 'born / borne'],
'beat': ['beat', 'beaten / beat'],
'become': ['became', 'become'],
'befall': ['befell', 'befallen'],
'beget': ['begat / begot', 'begotten'],
'begin': ['began', 'begun'],
'behold': ['beheld', 'beheld'],
'bend': ['bent', 'bent'],
'bereave': ['bereaved / bereft', 'bereaved / bereft'],
'beseech': ['besought / beseeched', 'besought / beseeched'],
'beset': ['beset', 'beset'],
'bestrew': ['bestrewed', 'bestrewn / bestrewed'],
'bet': ['bet / betted', 'bet / betted'],
'betake': ['betook', 'betaken'],
'bethink': ['bethought', 'bethought'],
'bid': ['bid', 'bid'],
'bind': ['bound', 'bound'],
'bite': ['bit', 'bitten'],
'bleed': ['bled', 'bled'],
'blow': ['blew', 'blown'],
'break': ['broke', 'broken'],
'breed': ['bred', 'bred'],
'bring': ['brought', 'brought'],
'broadcast': ['broadcast / broadcasted', 'broadcast / broadcasted'],
'browbeat': ['browbeat', 'browbeaten / browbeat'],
'build': ['built', 'built'],
'burn': ['burned / burnt', 'burned / burnt'],
'burst': ['burst', 'burst'],
'bust': ['busted / bust', 'busted / bust'],
'buy': ['bought', 'bought'],
'cast': ['cast', 'cast'],
'catch': ['caught', 'caught'],
'chide': ['chided / chid', 'chided / chidden'],
'choose': ['chose', 'chosen'],
'clap': ['clapped / clapt', 'clapped / clapt'],
'cling': ['clung', 'clung'],
'clothe': ['clothed / clad', 'clothed / clad'],
'colorbreed': ['colorbred', 'colorbred'],
'come': ['came', 'come'],
'cost': ['cost', 'cost'],
'creep': ['crept', 'crept'],
'crossbreed': ['crossbred', 'crossbred'],
'cut': ['cut', 'cut'],
'dare': ['dared / durst', 'dared / durst'],
'daydream': ['daydreamed / daydreamt', 'daydreamed / daydreamt'],
'deal': ['dealt', 'dealt'],
'dig': ['dug', 'dug'],
'dight': ['dighted / dight', 'dighted / dight'],
'disprove': ['disproved', 'disproved / disproven'],
'dive': ['dove / dived', 'dived'],
'do': ['did', 'done'],
'draw': ['drew', 'drawn'],
'dream': ['dreamed / dreamt', 'dreamed / dreamt'],
'drink': ['drank', 'drunk'],
'drive': ['drove', 'driven'],
'dwell': ['dwelt / dwelled', 'dwelt / dwelled'],
'eat': ['ate', 'eaten'],
'enwind': ['enwound', 'enwound'],
'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'],
'forbear': ['forbore', 'forborne'],
'forbid': ['forbade', 'forbidden'],
'fordo': ['fordid', 'fordone'],
'forecast': ['forecast', 'forecast'],
'forgo': ['forewent', 'foregone'],
'forego': ['forewent', 'foregone'],
'foreknow': ['foreknew', 'foreknown'],
'forerun': ['foreran', 'forerun'],
'foresee': ['foresaw', 'foreseen'],
'foreshow': ['foreshowed', 'foreshown / foreshowed'],
'forespeak': ['forespoke', 'forespoken'],
'foretell': ['foretold', 'foretold'],
'forget': ['forgot', 'forgotten / forgot'],
'forgive': ['forgave', 'forgiven'],
'forsake': ['forsook', 'forsaken'],
'forswear': ['forswore', 'forsworn'],
'fraught': ['fraught', 'fraught'],
'freeze': ['froze', 'frozen'],
'frostbite': ['frostbit', 'frostbitten'],
'gainsay': ['gainsaid', 'gainsaid'],
'get': ['got', 'gotten / got'],
'gild': ['gilded / gilt', 'gilded / gilt'],
'give': ['gave', 'given'],
'go': ['went', 'gone'],
'grind': ['ground', 'ground'],
'grow': ['grew', 'grown'],
'hagride': ['hagrode', 'hagridden'],
'halterbreak': ['halterbroke', 'halterbroken'],
'hamstring': ['hamstrung', 'hamstrung'],
'hand-feed': ['hand-fed', 'hand-fed'],
'handwrite': ['handwrote', 'handwritten'],
'hang': ['hanged / hung', 'hanged / hung'],
'have': ['had', 'had'],
'hear': ['heard', 'heard'],
'heave': ['heaved / hove', 'heaved / hove'],
'hew': ['hewed', 'hewn / hewed'],
'hide': ['hid', 'hidden'],
'hit': ['hit', 'hit'],
'hold': ['held', 'held'],
'hurt': ['hurt', 'hurt'],
'inbreed': ['inbred', 'inbred'],
'inlay': ['inlaid', 'inlaid'],
'input': ['input / inputted', 'input / inputted'],
'inset': ['inset', 'inset'],
'interbreed': ['interbred', 'interbred'],
'intercut': ['intercut', 'intercut'],
'interlay': ['interlaid', 'interlaid'],
'interset': ['interset', 'interset'],
'interweave': ['interwove / interweaved', 'interwoven / interweaved'],
'interwind': ['interwound', 'interwound'],
'inweave': ['inwove / inweaved', 'inwoven / inweaved'],
'jerry-build': ['jerry-built', 'jerry-built'],
'keep': ['kept', 'kept'],
'kneel': ['knelt / kneeled', 'knelt / kneeled'],
'knit': ['knitted / knit', 'knitted / knit'],
'know': ['knew', 'known'],
'lade': ['laded', 'laden / laded'],
'landslide': ['landslid', 'landslid'],
'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': ['lied', 'lied'],
'light': ['lit / lighted', 'lit / lighted'],
'lip-read': ['lip-read', 'lip-read'],
'lose': ['lost', 'lost'],
'make': ['made', 'made'],
'mean': ['meant', 'meant'],
'meet': ['met', 'met'],
'misbecome': ['misbecame', 'misbecome'],
'miscast': ['miscast', 'miscast'],
'miscut': ['miscut', 'miscut'],
'misdeal': ['misdealt', 'misdealt'],
'misdo': ['misdid', 'misdone'],
'mishear': ['misheard', 'misheard'],
'mishit': ['mishit', 'mishit'],
'mislay': ['mislaid', 'mislaid'],
'mislead': ['misled', 'misled'],
'mislearn': ['mislearned / mislearnt', 'mislearned / mislearnt'],
'misread': ['misread', 'misread'],
'missay': ['missaid', 'missaid'],
'missend': ['missent', 'missent'],
'misset': ['misset', 'misset'],
'misspeak': ['misspoke', 'misspoken'],
'misspell': ['misspelled / misspelt', 'misspelled / misspelt'],
'misspend': ['misspent', 'misspent'],
'misswear': ['misswore', 'missworn'],
'mistake': ['mistook', 'mistaken'],
'misteach': ['mistaught', 'mistaught'],
'mistell': ['mistold', 'mistold'],
'misthink': ['misthought', 'misthought'],
'misunderstand': ['misunderstood', 'misunderstood'],
'miswear': ['miswore', 'misworn'],
'miswed': ['miswed / miswedded', 'miswed / miswedded'],
'miswrite': ['miswrote', 'miswritten'],
'mow': ['mowed', 'mowed / mown'],
'offset': ['offset', 'offset'],
'outbid': ['outbid', 'outbid'],
'outbreed': ['outbred', 'outbred'],
'outdo': ['outdid', 'outdone'],
'outdraw': ['outdrew', 'outdrawn'],
'outdrink': ['outdrank', 'outdrunk'],
'outdrive': ['outdrove', 'outdriven'],
'outfight': ['outfought', 'outfought'],
'outfly': ['outflew', 'outflown'],
'outgrow': ['outgrew', 'outgrown'],
'outlay': ['outlaid', 'outlaid'],
'outleap': ['outleaped / outleapt', 'outleaped / outleapt'],
'outlie': ['outlied', 'outlied'],
'output': ['output / outputted', 'output / outputted'],
'outride': ['outrode', 'outridden'],
'outrun': ['outran', 'outrun'],
'outsee': ['outsaw', 'outseen'],
'outsell': ['outsold', 'outsold'],
'outshine': ['outshined / outshone', 'outshined / outshone'],
'outshoot': ['outshot', 'outshot'],
'outsing': ['outsang', 'outsung'],
'outsit': ['outsat', 'outsat'],
'outsleep': ['outslept', 'outslept'],
'outsmell': ['outsmelled / outsmelt', 'outsmelled / outsmelt'],
'outspeak': ['outspoke', 'outspoken'],
'outspeed': ['outsped', 'outsped'],
'outspend': ['outspent', 'outspent'],
'outspin': ['outspun', 'outspun'],
'outspring': ['outsprang / outsprung', 'outsprung'],
'outstand': ['outstood', 'outstood'],
'outswear': ['outswore', 'outsworn'],
'outswim': ['outswam', 'outswum'],
'outtell': ['outtold', 'outtold'],
'outthink': ['outthought', 'outthought'],
'outthrow': ['outthrew', 'outthrown'],
'outwear': ['outwore', 'outworn'],
'outwind': ['outwound', 'outwound'],
'outwrite': ['outwrote', 'outwritten'],
'overbear': ['overbore', 'overborne / overborn'],
'overbid': ['overbid', 'overbid'],
'overbreed': ['overbred', 'overbred'],
'overbuild': ['overbuilt', 'overbuilt'],
'overbuy': ['overbought', 'overbought'],
'overcast': ['overcast', 'overcast'],
'overcome': ['overcame', 'overcome'],
'overcut': ['overcut', 'overcut'],
'overdo': ['overdid', 'overdone'],
'overdraw': ['overdrew', 'overdrawn'],
'overdrink': ['overdrank', 'overdrunk'],
'overeat': ['overate', 'overeaten'],
'overfeed': ['overfed', 'overfed'],
'overhang': ['overhung', 'overhung'],
'overhear': ['overheard', 'overheard'],
'overlay': ['overlaid', 'overlaid'],
'overleap': ['overleaped / overleapt', 'overleaped / overleapt'],
'overlie': ['overlay', 'overlain'],
'overpay': ['overpaid', 'overpaid'],
'override': ['overrode', 'overridden'],
'overrun': ['overran', 'overrun'],
'oversee': ['oversaw', 'overseen'],
'oversell': ['oversold', 'oversold'],
'overset': ['overset', 'overset'],
'oversew': ['oversewed', 'oversewn / oversewed'],
'overshoot': ['overshot', 'overshot'],
'oversleep': ['overslept', 'overslept'],
'oversow': ['oversowed', 'oversown / oversowed'],
'overspeak': ['overspoke', 'overspoken'],
'overspend': ['overspent', 'overspent'],
'overspill': ['overspilled / overspilt', 'overspilled / overspilt'],
'overspin': ['overspun', 'overspun'],
'overspread': ['overspread', 'overspread'],
'overspring': ['oversprang / oversprung', 'oversprung'],
'overstand': ['overstood', 'overstood'],
'overstrew': ['overstrewed', 'overstrewn / overstrewed'],
'overstride': ['overstrode', 'overstridden'],
'overstrike': ['overstruck', 'overstruck'],
'overtake': ['overtook', 'overtaken'],
'overthink': ['overthought', 'overthought'],
'overthrow': ['overthrew', 'overthrown'],
'overwear': ['overwore', 'overworn'],
'overwind': ['overwound', 'overwound'],
'overwrite': ['overwrote', 'overwritten'],
'partake': ['partook', 'partaken'],
'pay': ['paid', 'paid'],
'plead': ['pleaded / pled', 'pleaded / pled'],
'prebuild': ['prebuilt', 'prebuilt'],
'predo': ['predid', 'predone'],
'premake': ['premade', 'premade'],
'prepay': ['prepaid', 'prepaid'],
'presell': ['presold', 'presold'],
'preset': ['preset', 'preset'],
'preshrink': ['preshrank', 'preshrunk'],
'presplit': ['presplit', 'presplit'],
'proofread': ['proofread', 'proofread'],
'prove': ['proved', 'proven / proved'],
'put': ['put', 'put'],
'quick-freeze': ['quick-froze', 'quick-frozen'],
'quit': ['quit / quitted', 'quit / quitted'],
'read': ['read', 'read'],
'reawake': ['reawoke', 'reawaken'],
'rebid': ['rebid', 'rebid'],
'rebind': ['rebound', 'rebound'],
'rebroadcast': ['rebroadcast / rebroadcasted', 'rebroadcast / rebroadcasted'],
'rebuild': ['rebuilt', 'rebuilt'],
'recast': ['recast', 'recast'],
'recut': ['recut', 'recut'],
'redeal': ['redealt', 'redealt'],
'redo': ['redid', 'redone'],
'redraw': ['redrew', 'redrawn'],
'reeve': ['reeved / rove', 'reeved / rove'],
'refit': ['refit / refitted', 'refit / refitted'],
'regrind': ['reground', 'reground'],
'regrow': ['regrew', 'regrown'],
'rehang': ['rehung', 'rehung'],
'rehear': ['reheard', 'reheard'],
'reknit': ['reknitted / reknit', 'reknitted / reknit'],
'relay': ['relaid', 'relaid'],
'relearn': ['relearned / relearnt', 'relearned / relearnt'],
'relight': ['relit / relighted', 'relit / relighted'],
'remake': ['remade', 'remade'],
'rend': ['rent / rended', 'rent / rended'],
'repay': ['repaid', 'repaid'],
'reread': ['reread', 'reread'],
'rerun': ['reran', 'rerun'],
'resell': ['resold', 'resold'],
'resend': ['resent', 'resent'],
'reset': ['reset', 'reset'],
'resew': ['resewed', 'resewn / resewed'],
'retake': ['retook', 'retaken'],
'reteach': ['retaught', 'retaught'],
'retear': ['retore', 'retorn'],
'retell': ['retold', 'retold'],
'rethink': ['rethought', 'rethought'],
'retread': ['retread', 'retread'],
'retrofit': ['retrofitted / retrofit', 'retrofitted / retrofit'],
'rewake': ['rewoke / rewaked', 'rewaken / rewaked'],
'rewear': ['rewore', 'reworn'],
'reweave': ['rewove / reweaved', 'rewoven / reweaved'],
'rewed': ['rewed / rewedded', 'rewed / rewedded'],
'rewet': ['rewet / rewetted', 'rewet / rewetted'],
'rewin': ['rewon', 'rewon'],
'rewind': ['rewound', 'rewound'],
'rewrite': ['rewrote', 'rewritten'],
'rid': ['rid', 'rid'],
'ride': ['rode', 'ridden'],
'ring': ['rang', 'rung'],
'rise': ['rose', 'risen'],
'rive': ['rived', 'riven / rived'],
'roughcast': ['roughcast', 'roughcast'],
'run': ['ran', 'run'],
'sand-cast': ['sand-cast', 'sand-cast'],
'saw': ['sawed', 'sawed / sawn'],
'say': ['said', 'said'],
'see': ['saw', 'seen'],
'seek': ['sought', 'sought'],
'self-feed': ['self-fed', 'self-fed'],
'self-sow': ['self-sowed', 'self-sown / self-sowed'],
'sell': ['sold', 'sold'],
'send': ['sent', 'sent'],
'set': ['set', 'set'],
'sew': ['sewed', 'sewn / sewed'],
'shake': ['shook', 'shaken'],
'shave': ['shaved', 'shaved / shaven'],
'shear': ['sheared', 'sheared / shorn'],
'shed': ['shed', 'shed'],
'shine': ['shined / shone', 'shined / shone'],
'shit': ['shit / shat / shitted', 'shit / shat / shitted'],
'shoe': ['shoed / shod', 'shoed / shod'],
'shoot': ['shot', 'shot'],
'show': ['showed', 'shown / showed'],
'shrink': ['shrank / shrunk', 'shrunk'],
'shrive': ['shrived / shrove', 'shriven'],
'shut': ['shut', 'shut'],
'sight-read': ['sight-read', 'sight-read'],
'sing': ['sang', 'sung'],
'sink': ['sank / sunk', 'sunk'],
'sit': ['sat', 'sat'],
'skywrite': ['skywrote', 'skywritten'],
'slay': ['slew / slayed', 'slain / slayed'],
'sleep': ['slept', 'slept'],
'slide': ['slid', 'slid'],
'sling': ['slung', 'slung'],
'slink': ['slinked / slunk', 'slinked / slunk'],
'slit': ['slit', 'slit'],
'smell': ['smelled / smelt', 'smelled / smelt'],
'smite': ['smote', 'smitten / smote'],
'sneak': ['sneaked / snuck', 'sneaked / snuck'],
'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': ['spit / spat', 'spit / spat'],
'split': ['split', 'split'],
'spoil': ['spoiled / spoilt', 'spoiled / spoilt'],
'spoon-feed': ['spoon-fed', 'spoon-fed'],
'spread': ['spread', 'spread'],
'spring': ['sprang / sprung', 'sprung'],
'stall-feed': ['stall-fed', 'stall-fed'],
'stand ': ['stood', 'stood'],
'stave': ['staved / stove', 'staved / stove'],
'steal': ['stole', 'stolen'],
'stick': ['stuck', 'stuck'],
'sting': ['stung', 'stung'],
'stink': ['stunk / stank', 'stunk'],
'strew': ['strewed', 'strewn / strewed'],
'stride': ['strode', 'stridden'],
'strike': ['struck', 'struck / stricken'],
'string': ['strung', 'strung'],
'strip': ['stripped / stript', 'stripped / stript'],
'strive': ['strove / strived', 'striven / strived'],
'sublet': ['sublet', 'sublet'],
'sunburn': ['sunburned / sunburnt', 'sunburned / sunburnt'],
'swear': ['swore', 'sworn'],
'sweat': ['sweat / sweated', 'sweat / sweated'],
'sweep': ['swept', 'swept'],
'swell': ['swelled', 'swollen / swelled'],
'swim': ['swam', 'swum'],
'swing': ['swung', 'swung'],
'take': ['took', 'taken'],
'teach': ['taught', 'taught'],
'tear': ['tore', 'torn'],
'telecast': ['telecast', 'telecast'],
'tell': ['told', 'told'],
'test-drive': ['test-drove', 'test-driven'],
'test-fly': ['test-flew', 'test-flown'],
'think': ['thought', 'thought'],
'thrive': ['thrived / throve', 'thrived / thriven'],
'throw': ['threw', 'thrown'],
'thrust': ['thrust', 'thrust'],
'tread': ['trod', 'trodden / trod'],
'troubleshoot': ['troubleshot', 'troubleshot'],
'typecast': ['typecast', 'typecast'],
'typeset': ['typeset', 'typeset'],
'typewrite': ['typewrote', 'typewritten'],
'unbear': ['unbore', 'unborn / unborne'],
'unbend': ['unbent', 'unbent'],
'unbind': ['unbound', 'unbound'],
'unbuild': ['unbuilt', 'unbuilt'],
'unclothe': ['unclothed / unclad', 'unclothed / unclad'],
'underbid': ['underbid', 'underbid'],
'underbuy': ['underbought', 'underbought'],
'undercut': ['undercut', 'undercut'],
'underfeed': ['underfed', 'underfed'],
'undergo': ['underwent', 'undergone'],
'underlay': ['underlaid', 'underlaid'],
'underlet': ['underlet', 'underlet'],
'underlie': ['underlay', 'underlain'],
'underrun': ['underran', 'underrun'],
'undersell': ['undersold', 'undersold'],
'undershoot': ['undershot', 'undershot'],
'underspend': ['underspent', 'underspent'],
'understand': ['understood', 'understood'],
'undertake': ['undertook', 'undertaken'],
'underthrust': ['underthrust', 'underthrust'],
'underwrite': ['underwrote', 'underwritten'],
'undo': ['undid', 'undone'],
'undraw': ['undrew', 'undrawn'],
'unfreeze': ['unfroze', 'unfrozen'],
'unhang': ['unhung', 'unhung'],
'unhide': ['unhid', 'unhidden'],
'unhold': ['unheld', 'unheld'],
'unknit': ['unknitted / unknit', 'unknitted / unknit'],
'unlade': ['unladed', 'unladen / unladed'],
'unlay': ['unlaid', 'unlaid'],
'unlead': ['unleaded', 'unleaded'],
'unlearn': ['unlearned / unlearnt', 'unlearned / unlearnt'],
'unmake': ['unmade', 'unmade'],
'unreeve': ['unreeved / unrove', 'unreeved / unrove'],
'unsay': ['unsaid', 'unsaid'],
'unsew': ['unsewed', 'unsewn / unsewed'],
'unsling': ['unslung', 'unslung'],
'unspin': ['unspun', 'unspun'],
'unstick': ['unstuck', 'unstuck'],
'unstring': ['unstrung', 'unstrung'],
'unswear': ['unswore', 'unsworn'],
'unteach': ['untaught', 'untaught'],
'unthink': ['unthought', 'unthought'],
'unweave': ['unwove / unweaved', 'unwoven / unweaved'],
'unwind': ['unwound', 'unwound'],
'unwrite': ['unwrote', 'unwritten'],
'uphold': ['upheld', 'upheld'],
'upset': ['upset', 'upset'],
'vex': ['vexed / vext', 'vexed / vext'],
'wake': ['woke / waked', 'woken / waked'],
'waylay': ['waylaid', 'waylaid'],
'wear': ['wore', 'worn'],
'weave': ['wove / weaved', 'woven / weaved'],
'wed': ['wed / wedded', 'wed / wedded'],
'weep': ['wept', 'wept'],
'wet': ['wet / wetted', 'wet / wetted'],
'whet': ['whetted', 'whetted'],
'win': ['won', 'won'],
'wind': ['wound', 'wound'],
'withdraw': ['withdrew', 'withdrawn'],
'withhold': ['withheld', 'withheld'],
'withstand': ['withstood', 'withstood'],
'wring': ['wrung', 'wrung'],
'write': ['wrote', 'written']
}