Do all い-adjectives become adverbs when you add く to them? For example:

新しい = 新しく
早い  = 早く

But does this work with all the い-adjectives?


1 Answer 1


Yes, the conjugation rule is consistent with all the い-adjectives.

There are a few notable exceptional cases where they can also syntactically be nouns:

  • 近い→近く:

    • adjectival: 近くのX - the nearby X

    • noun: Xの近く - the vicinity of X

  • 多い→多く:

    • adjectival: 多くのX

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