Americans use "gotten" but most other English-speaking countries have "got" for that form. To get: Get, got, gotten To get: Get, got, got I always find it puzzling, since they do say I forget, I forgot, I have forgotten, but with "get" the last form is gone. But note that your source was Cambridge, with is of course, British English, so using "gotten" would be wrong there.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Cup cakeI have to say, the fact that only Americans use 'gotten' is news to me.Someone on this forum (some time ago and I don't know who) has challenged that. Apparently some Brits do use "gotten" (but maybe not those who were educated at Cambridge).
Cup cakeDid you go to Cambridge CJ?No, but I went to Oxford.