〜くなる
〜くなる means become (i-adjective). It is a JLPT N4 grammar point. Change the final 「い」 of an i-adjective to 「く」 and add 「なる」 to say that a state changes. It is often used for changes in weather, color, feelings, ability, and similar states.
Japanese sources describe it as 「い形容詞が変化する」.
〜くなる examples
春になると暖かくなります。
When spring comes, it gets warm.
部屋が明るくなりました。
The room became bright.
〜くなる exercises
Pick what belongs in the parentheses. The answer is marked below.
だんだん寒（ ）なりました。
- く ✓
- に
- な
- さ
It gradually became cold.
部屋が明る（ ）なりました。
- に
- く ✓
- な
- さ
The room became bright.
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