広い (hiroi) conjugation
spacious; wide; broad
広い (ひろい, hiroi) 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 | 広い hiroi | 広いです hiroidesu | The form you look up. Also the casual “is ~”. |
| Negative | 広くない hirokunai | 広くないです hirokunaidesu | “is not ~”. |
| Past | 広かった hirokatta | 広かったです hirokattadesu | “was ~”. |
| Past negative | 広くなかった hirokunakatta | 広くなかったです hirokunakattadesu | “was not ~”. |
| Te-form | 広くて hirokute | — | Links to the next clause: “~ and …”. |
| Adverb | 広く hiroku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 広い〜 hiroi〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 広ければ hirokereba | — | “if it is ~”. |
| Conditional (~たら) | 広かったら hirokattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 広くなる hirokunaru | 広くなります hirokunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 広すぎる hirosugiru | 広すぎます hirosugimasu | “too ~”. |
| Looks ~ (~そう) | 広そう hirosou | 広そうです hirosoudesu | “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.