騒がしい (sawagashii) conjugation
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騒がしい (さわがしい, sawagashii) 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 | 騒がしい sawagashii | 騒がしいです sawagashiidesu | The form you look up. Also the casual “is ~”. |
| Negative | 騒がしくない sawagashikunai | 騒がしくないです sawagashikunaidesu | “is not ~”. |
| Past | 騒がしかった sawagashikatta | 騒がしかったです sawagashikattadesu | “was ~”. |
| Past negative | 騒がしくなかった sawagashikunakatta | 騒がしくなかったです sawagashikunakattadesu | “was not ~”. |
| Te-form | 騒がしくて sawagashikute | — | Links to the next clause: “~ and …”. |
| Adverb | 騒がしく sawagashiku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 騒がしい〜 sawagashii〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 騒がしければ sawagashikereba | — | “if it is ~”. |
| Conditional (~たら) | 騒がしかったら sawagashikattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 騒がしくなる sawagashikunaru | 騒がしくなります sawagashikunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 騒がしすぎる sawagashisugiru | 騒がしすぎます sawagashisugimasu | “too ~”. |
| Looks ~ (~そう) | 騒がしそう sawagashisou | 騒がしそうです sawagashisoudesu | “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.