What is the past participle of get?

Question

In india we have been taught the British English by such eminent teachers like Rev.Fr.T.N.Sequira as Get-Got-Got.Wherethis "Gotten"used in America came from?

Answer 1

There's a difference b/w "had got" and "had gotten" in American English.

http://wsu.edu/~brians/errors/got.html