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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.]  
>  A: 出国{しゅっこく}の手配{てはい}は済{す}ませた。  
>  'I've made the arrangements to leave the country.'  
>  B: ありがとう。

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?
CC BY-SA 3.0
2011-10-21T23:52:30.580
3529
2011-10-24T15:36:15.667
2011-10-23T06:30:39.017
769
question
grammar learning
What kind of conjugation is 済{す}ませた?
It is simply the 〜た form of 済ませる, which basically means the same as 済ます.

Quoted from
[大辞泉](http://dic.yahoo.co.jp/dsearch?enc=UTF-8&p=%E6%B8%88%E3%81%BE%E3%81%9B%E3%82%8B&dtype=0&dname=0na&stype=0):

> すま・せる【済ませる】  
>  「済ます」に同じ。

And
[大辞林](http://dic.yahoo.co.jp/dsearch?enc=UTF-8&p=%E6%B8%88%E3%81%BE%E3%81%9B%E3%82%8B&dtype=0&dname=0ss&stype=0):

> すま・せる 【済ませる】  
>  「すます（済）」に同じ。
CC BY-SA 3.0
2011-10-22T00:35:31.150
3530
2011-10-24T15:36:15.667
2011-10-24T15:36:15.667
112
112
3529
answer