Все 3 формы слов неправильных глаголов На C. Can, catch, choose, come, cost, cut. на f. fall, feed, feel, fight, find, fly, forget, forbid, forgive, freeze. на s. say, see, sell, send, set, sew, shake, shine, shoot, show, shut, sit, sleep, smell, speak, spell
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На c: Can - could - could; catch - caught - caught; choose - chose - chosen; come - came - come; cost - cost - cost; cut - cut - cut.
На f: Fall - fell - fallen; feed - fed - fed; feel - felt - felt; fight - fought - fought; find - found - found; fly - flew - flown; forget - forgot - forgotten; forbid - forbade - forbidden; forgive - forgave - forgiven; freeze - froze - frozen.
На s: Say - said - said; see - saw - seen; sell - sold - sold; send - sent - sent; set - set - set; sew - sewed - sewn/sewed; shake - shook - shaken; shine - shone - shone; shoot - shot - shot; show - showed - shown/showed; shut - shut - shut; sit - sat - sat; sleep - slept - slept; smell - smelt - smelt/smelled; speak - spoke - spoken; spell - spelt - spelt/spelled.