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I came across this sentence:

パトカーに 捉まってしまいました。

The book I am using, explains に is used here to indicate the passive form. I
looked up a video explaining it by [Misa from Japanese
Ammo](https://www.youtube.com/watch?v=QPOA3OYFnj4). She explains that one of
the reasons to use passive form, is to express feeling upset, angry or
embarrassed. Apparently [Verb te-form + しまいました](https://www.learn-japanese-
adventure.com/how-to-use-japanese-verb-teform-shimaimashita.html) can be used
to express regret or embarrassment. Now, Misa does not explain in that lesson
that the passive could also be formed with Verb te-form + しまいました, the website
that explains Verb te-form + しまいました does not include passive examples. Can you
build the passive with Verb te-form + しまいました instead of the passive form of
the verb?
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2020-05-26T20:04:04.403
77628
2020-05-26T20:36:39.500
36811
question
grammar passive-voice
Can you build the passive with Verb te-form + しまいました instead of the passive form of the verb?
The passiveness here has nothing to do with てしまう. Your sentence uses the verb
捕まる which means "to be caught". The passive is inherent in the verb choice.
Compare this with the verb 捕まえる which means "to catch". Japanese has a lot of
verb pairs like this.

The てしまう ending merely adds a sense of regret as you correctly stated.
CC BY-SA 4.0
2020-05-26T20:36:39.500
77629
2020-05-26T20:36:39.500
7944
77628
answer