I mean 震え出す translates as "to begin to tremble" and meaning of しまう auxilary verb is "to finish ..., to do ... completely".

So, it doesn't make sense for me to complete something you begin to do...

  • 4
    What's the subject belonging to that verb? You should include some context. BTW, しまう can be used in more ways than you seem to realize.
    – Will
    May 24, 2021 at 22:46

1 Answer 1


しまう has quite a few meanings, e.g. finish doing something, do something completely, thoroughly, accidentally, regrettably, unexpectedly, or involuntarily, etc...

震えだしてしまう can be "start shivering" + "do...involuntarily/unexpectedly". Does it make sense in your context?

  • Yes, thank you very much.
    – sklott
    May 25, 2021 at 8:35

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