other N5 essential casualpolitewritten
〜になる・〜くなる — to become ~
〜になる・〜くなる ・ になる
Meaning
- to become ~ — a change of state attached to a noun, na-adjective, or i-adjective
Key sentence
弟は医者になった。
My younger brother became a doctor.
Formation
| Attaches to | Form | Example |
|---|---|---|
| Noun | N + になる | 大人になる |
| na-adjective | na-adj + になる | 元気になる |
| i-adjective (drop い + くなる) | A-くなる | 寒い → 寒くなる |
Examples
来月で二十歳になります。
I'll turn twenty next month.
掃除して、部屋がきれいになった。
I cleaned, and the room became tidy.
最近、ずいぶん寒くなってきた。
It's gotten quite cold lately.
When you can't use it
- i-adjectives take くなる, not になる: ×寒いになる → ○寒くなる. Only nouns and na-adjectives take になる.
Easily confused with
See 〜になる・〜くなる in real sentences
Jengo shows 〜になる・〜くなる the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.
Study it in JengoSources Compiled from published Japanese grammar references.