This is from the anime Noir, Episode 1 starting at 23:13 at the school:
[The two characters A and B are leaving the country.]
'I've made the arrangements to leave the country.'
My question is about the conjugation of
済ませた. I would have expected to hear:
済まして(い)た. I can't figure out what kind of conjugation that is. It looks like the potential form with
iru, but I've never seen a past potential form. Plus, 'can finished' or 'can have finished' is much different than 'have finished'. So again, what kind of conjugation is
済ませた? How is it formed?