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I've googled, and it only comes up with results for the plain form of verbs.
Is the answer just to change the polite form to plain form and then
distinguish? If so, how do I do that?
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2021-07-01T09:56:43.120
87274
2021-07-01T22:54:01.093
45404
question
verbs
Identifying ichidan and godan verbs from polite (masu) form?
Excluding the two irregular (Group-3) verbs (i.e. します and [来]{き}ます), a verb is
an _ichidan_ (Group-2) verb if it satisfies either of the following
conditions.

  1. The syllable immediately before ます is of the /e/ sound (e.g. あげます, [食]{た}べます, [出]{で}ます)
  2. It has only one syllable before ます (e.g. います, [見]{み}ます, [着]{き}ます)

As a rule, all other verbs are _godan_ (Group-1) verbs.

However, there are exceptions such as [起]{お}きます, [降]{お}ります and [借]{か}ります,
which are _ichidan_ (Group-2) verbs despite having multiple syllables before
ます and the final one is of the /i/ sound. You should memorize them as
exceptions.

[Note] If the syllable immediately before ます is not of the /e/ sound, it is
always of the /i/ sound.
CC BY-SA 4.0
2021-07-01T10:31:36.120
87275
2021-07-01T10:31:36.120
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87274
answer