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Study Resource: Japanese adjective conjugation charts

By: Mayumi Ito

Conjugation of i-adjectives


	Plain form	Polite form
Non-past affirmative	暑い Transcription: atsui Translation: it is hot	暑いです Transcription: atsui desu Translation: it is hot
Past affirmative	暑かった Transcription: atsukatta Translation: it was hot	暑かったです Transcription: atsukatta desu Translation: it was hot
Non-past negative	暑くない Transcription: atsukunai Translation: it is not hot	暑くありません Transcription: atsukuarimasen Translation: it is not hot
Past negative	暑くなかった Transcription: atsukunakatta Translation: it was not hot	暑くありませんでした Transcription: atsukuarimasendeshita Translation: it was not hot

The irregular i-adjective いい


	Plain form	Polite form
Non-past affirmative	いい Transcription: ii Translation: it is good	いいです Transcription: ii desu Translation: it is good
Past affirmative	よかった Transcription: yokatta Translation: it was good	よかったです Transcription: yokatta desu Translation: it was good
Non-past negative	よくない Transcription: yokunai Translation: it is not good	よくありません Transcription: yokuarimasen Translation: it is not good
Past negative	よくなかった Transcription: yokunakatta Translation: it was not good	よくありませんでした Transcription: yokuarimasendeshita Translation: it was not good

Conjugation of na-adjectives


	Plain form	Polite form
Non-past affirmative	きれいだ Transcription: kirei da Translation: it's clean	きれいです Transcription: kirei desu Translation: it's clean
Past affirmative	きれいだった Transcription: kirei datta Translation: it was clean	きれいでした Transcription: kirei deshita Translation: it was clean
Non-past negative	きれいじゃない Transcription: kirei ja nai Translation: it is not clean きれいではない Transcription: kirei de wa nai Translation: it is not clean	きれいじゃないです Transcription: kirei ja nai desu Translation: it is not clean きれいではないです Transcription: kirei de wa nai desu Translation: it is not clean
Past negative	きれいじゃなかった Transcription: kirei ja nakatta Translation: it was not clean きれいではなかった Transcription: kirei de wa nakatta Translation: it was not clean	きれいじゃなかったです Transcription: kirei ja nakatta desu Translation: it was not clean きれいではなかったです Transcription: kirei de wa nakatta desu Translation: it was not clean