真ん丸い (manmarui) conjugation
perfectly circular
真ん丸い (まんまるい, manmarui) 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 | 真ん丸い manmarui | 真ん丸いです manmaruidesu | The form you look up. Also the casual “is ~”. |
| Negative | 真ん丸くない manmarukunai | 真ん丸くないです manmarukunaidesu | “is not ~”. |
| Past | 真ん丸かった manmarukatta | 真ん丸かったです manmarukattadesu | “was ~”. |
| Past negative | 真ん丸くなかった manmarukunakatta | 真ん丸くなかったです manmarukunakattadesu | “was not ~”. |
| Te-form | 真ん丸くて manmarukute | — | Links to the next clause: “~ and …”. |
| Adverb | 真ん丸く manmaruku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 真ん丸い〜 manmarui〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 真ん丸ければ manmarukereba | — | “if it is ~”. |
| Conditional (~たら) | 真ん丸かったら manmarukattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 真ん丸くなる manmarukunaru | 真ん丸くなります manmarukunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 真ん丸すぎる manmarusugiru | 真ん丸すぎます manmarusugimasu | “too ~”. |
| Looks ~ (~そう) | 真ん丸そう manmarusou | 真ん丸そうです manmarusoudesu | “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.