荒い (arai) conjugation
rough, rude, wild
荒い (あらい, arai) 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 | 荒い arai | 荒いです araidesu | The form you look up. Also the casual “is ~”. |
| Negative | 荒くない arakunai | 荒くないです arakunaidesu | “is not ~”. |
| Past | 荒かった arakatta | 荒かったです arakattadesu | “was ~”. |
| Past negative | 荒くなかった arakunakatta | 荒くなかったです arakunakattadesu | “was not ~”. |
| Te-form | 荒くて arakute | — | Links to the next clause: “~ and …”. |
| Adverb | 荒く araku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 荒い〜 arai〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 荒ければ arakereba | — | “if it is ~”. |
| Conditional (~たら) | 荒かったら arakattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 荒くなる arakunaru | 荒くなります arakunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 荒すぎる arasugiru | 荒すぎます arasugimasu | “too ~”. |
| Looks ~ (~そう) | 荒そう arasou | 荒そうです arasoudesu | “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.