新しい (atarashii) conjugation
new
新しい (あたらしい, atarashii) is an i-adjective. I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | 新しい atarashii | 新しいです atarashiidesu | The form you look up. Also the casual “is ~”. |
| Negative | 新しくない atarashikunai | 新しくないです atarashikunaidesu | “is not ~”. |
| Past | 新しかった atarashikatta | 新しかったです atarashikattadesu | “was ~”. |
| Past negative | 新しくなかった atarashikunakatta | 新しくなかったです atarashikunakattadesu | “was not ~”. |
| Te-form | 新しくて atarashikute | — | Links to the next clause: “~ and …”. |
| Adverb | 新しく atarashiku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 新しい〜 atarashii〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 新しければ atarashikereba | — | “if it is ~”. |
| Conditional (~たら) | 新しかったら atarashikattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 新しくなる atarashikunaru | 新しくなります atarashikunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 新しすぎる atarashisugiru | 新しすぎます atarashisugimasu | “too ~”. |
| Looks ~ (~そう) | 新しそう atarashisou | 新しそうです atarashisoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
See the full rules in the adjective conjugation guide.