I'm trying to figure out how to say "Maybe it's just because ____, but..." in Japanese, but I'm not sure how to place 'just because' in its own clause that way.

If I'm not mistaken, the expression '____という理由だけで' roughly translates to 'just because ____'. However, since I've only ever seen it used as part of a sentence about something else, like '友達がその本を推薦したという理由だけで読んだ', I can't tell whether the で in it acts as a particle, or the te-form of the copula.

Obviously, this is a problem when I'm trying to use the expression as a clause to add が to in my sentence. Does anyone know the proper way to do so?

  • 「という理由だけで」isn't wrong phrase at all, but it's commonly used as 「とういうだけで」so you might be able to find more information this way.
    – user32966
    Feb 17, 2019 at 6:37

1 Answer 1


The use of で here fits the second Wiktionary definition:

with, by, using: indicating the means by or with which something happens

The で here attaches to 理由, rather than だけ. 'Via' and 'per', and 'for' could also be suitable translations given the right context.

〇〇という理由で & 〇〇というわけで For that reason; on the grounds of _____.

I assume you want to add が to mean 'but'. If you show the specific sentence that you have in mind and attempt your own translation a fruitful answer may emerge.

  • Thanks for the answer! The thing you said about attaching to 理由 gave me an idea: if i wanted to just say 'there is a reason', i would use ある, i.e. 理由がある. So I googled 'という理由だけである', and sure enough, it seems to be in use. I think that's probably the translation I'm looking for! Feb 17, 2019 at 7:28
  • @AlphaModder Glad I could help ;)
    – BJCUAI
    Feb 17, 2019 at 7:42

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