Gotten is the past participle of get in American English. see also ill-gotten gains. the past participle of get ill-gotten gains US/UK DIFFERENCE In American English, gotten is the usual past participle of get : | | gotten is not used as the past participle for got to meaning 'must'. Speakers of American English say had to rather than had got to : In British English, gotten is not used. The past participle of get in British English is got