Use なる to describe a change in a person, condition or time.
The idea
なる is a godan verb meaning “become”. Use noun + に or な-adjective stem + に: 医者になる, 静かになる. For an い-adjective, replace final い with く: 寒くなる. Its polite past is なりました.
| Dictionary form | Polite non-past | Polite negative | Polite past | て form |
|---|---|---|---|---|
| なる | なります | なりません | なりました | なって |
Examples
- 春になると、暖かくなります。When spring comes, it gets warm.
- 妹は医者になりました。My younger sister became a doctor.
- この町は夜に静かになります。This town becomes quiet at night.
- 子どもは大きくなりました。The child has grown big.
- もう七時になりました。It is already seven o’clock.
- 天気がよくなりました。The weather has improved.
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Watch out
Do not add に after an い-adjective: 寒くなる, not 寒いになる. The irregular adjective いい becomes よくなる.
Try it yourself
なる → ます
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なります
なります is the polite non-past; it can refer to a present habit or a future change.
静か＿なりました。（に／く）
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に
に follows the な-adjective stem 静か to mark the resulting state.
寒い → ＿なりました。
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寒く
寒く replaces the final い of 寒い with く before なりました.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
なる → ます
静か＿なりました。（に／く）
寒い → ＿なりました。
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
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Describe a change in the weather, then make your sentence polite and past.