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I couldn't find a good way to research this on my own, I'm afraid.  
I'm not looking for a comprehensive list by any means (in before it turns out
帰る is the only one...), but rather just a few examples because 帰る always
seemed pretty special to me in regard to its pitch accent.
CC BY-SA 4.0
2019-10-21T08:09:01.790
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2023-05-28T08:32:10.860
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verbs pitch-accent
What are some examples of three-mora atamadaka verbs besides 帰る?
Those are extremely rare. Besides 「帰{かえ}る」, I could only think of the
following in Standard Japanese.

  * 「入{はい}る」

  * 「通{とお}る」

  * 「返{かえ}す」

  * 「参{まい}る」

*** In case anyone is unsure of what the questioner is talking about, s/he is
looking for three-mora verbs in which the pitch accent pattern is
「[〇〇〇]{HLL}」.

「頭高{あたまだか}」 means "head-high".
CC BY-SA 4.0
2019-10-21T08:32:32.383
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2019-10-22T01:10:24.273
2019-10-22T01:10:24.273
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<https://www.wadoku.de/> has accent patterns for quite a lot of entries; it
translates to German, though…

But its data can be downloaded in XML format, a comprehensive list could be
compiled from that with a bit of programming skills.
CC BY-SA 4.0
2019-10-21T21:12:13.420
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2019-10-21T21:12:13.420
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I've found [OJAD, the Online Japanese Accent
Dictionary](http://www.gavo.t.u-tokyo.ac.jp/ojad/), to be particularly useful
in providing pitch patterns for conjugated forms as well. And poking around
just now, I discovered that the site does have tools for looking up, say, 1)
all verbs 2) that have 頭高 pitch patterns and 3) have 3 morae.

Search results:
<http://www.gavo.t.u-tokyo.ac.jp/ojad/search/index/category:verb/accent_type:2/mola:3/sortprefix:accent/narabi1:kata_asc/narabi2:accent_asc/narabi3:mola_asc/yure:visible/curve:invisible/details:invisible/limit:20>

If that list is accurate, there are 10 such 3-mora verbs with 頭高 pitch
patterns.

If you're curious about other sets of common terms with a specific pitch
pattern and length, just play around with the 検索の条件 options. Happy searching!

PS: The UI of the site is all in Japanese by default, but you can click the
flag icons in the upper right to choose a different UI language.
CC BY-SA 4.0
2019-10-22T20:23:06.353
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I know this question was posted 4 years ago but I'll offer my insight anyhow.
I too am on a "pitch learning" journey with my Japanese vocabulary, and one
interesting rule I've found is that most katakana 3 mora loan words are
atamadaka.

テレビ - TErebi カメラ - KAmera バナナ - BAnana ドバイ - DObai ハワイ - HAwai アイス - Aisu

This rule is actually part of another rule that states most loan katakana
words have a high to low pitch on the _3rd_ to last mora.

I hope whoever comes across this reply finds it useful.
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