What part of speech is あたたかく?


In the following sentence:

> 3 月ごろ、だんだん あたたかく なります。

Is `あたたかく` an `い`-adjective which has been turned into an adverb,

and has been used with another adverb (`だんだん`) in this sentence?




If you are thinking だんだん modifies あたたかく, it doesn’t. Both modify なります, but
they have different functions.

なる is a verb of change and it requires an expression that describes what the
subject will be like after the change. When you use an adjective there, you
need to change it into the “adverbial” form. That’s あたたかく for あたたかい. In
English, you would use an adjective as a complement of the verb, like “It will
become warm.”

だんだん describes how that change happens.




If you are thinking だんだん modifies あたたかく, it doesn’t. Both modify なります, but
they have different functions.

なる is a verb of change and it requires an expression that describes what the
subject will be like after the change. When you use an adjective there, you
need to change it into the “adverbial” form. That’s あたたかく for あたたかい. In
English, you would use an adjective as a complement of the verb, like “It will
become warm.”

だんだん describes how that change happens.

