茶色い (chairoi) conjugation
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茶色い (ちゃいろい, chairoi) 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 | 茶色い chairoi | 茶色いです chairoidesu | The form you look up. Also the casual “is ~”. |
| Negative | 茶色くない chairokunai | 茶色くないです chairokunaidesu | “is not ~”. |
| Past | 茶色かった chairokatta | 茶色かったです chairokattadesu | “was ~”. |
| Past negative | 茶色くなかった chairokunakatta | 茶色くなかったです chairokunakattadesu | “was not ~”. |
| Te-form | 茶色くて chairokute | — | Links to the next clause: “~ and …”. |
| Adverb | 茶色く chairoku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 茶色い〜 chairoi〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 茶色ければ chairokereba | — | “if it is ~”. |
| Conditional (~たら) | 茶色かったら chairokattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 茶色くなる chairokunaru | 茶色くなります chairokunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 茶色すぎる chairosugiru | 茶色すぎます chairosugimasu | “too ~”. |
| Looks ~ (~そう) | 茶色そう chairosou | 茶色そうです chairosoudesu | “looks / seems ~” from appearance. |
🔊 Tap any Japanese word to hear it spoken.
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.