In Japanese, you use the word なる to indicate the change of adjective status.

In this sense, なる means "become" or "get"

さいきん　さむく　なりました。

It has become cold recently.

*さいきん means "recently"

*さむい→さむく

ビッグマック　が　たかく　なりました。

Bigmac got expensive.

*たかい→たかく

わたし　の　ちち　は　げんきに　なりました。

My father became healthy.

*げんき→げんきに

にほんご　の　べんきょう　が　すきに　なりました。

I have become to like studying Japanese.

*すき→すきに

*For い-adjectives, the final い is replaced with く to connect with なる

*For な-adjectives, you need to add に to connect with なる

*Please be careful not to apply a な-adjective conjugation rule to an い-adjective.

Reference:

Adjectives

https://anchor.fm/yuya-sato/episodes/Adjectives-en9o8v

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