有名 (yuumei) conjugation
famous
有名 (ゆうめい, yuumei) is a na-adjective. Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | 有名だ yuumeida | 有名です yuumeidesu | The form you look up. Also the casual “is ~”. |
| Negative | 有名じゃない yuumeijanai | 有名じゃないです yuumeijanaidesu | “is not ~”. |
| Past | 有名だった yuumeidatta | 有名でした yuumeideshita | “was ~”. |
| Past negative | 有名じゃなかった yuumeijanakatta | 有名じゃなかったです yuumeijanakattadesu | “was not ~”. |
| Te-form | 有名で yuumeide | — | Links to the next clause: “~ and …”. |
| Adverb | 有名に yuumeini | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 有名な〜 yuumeina〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 有名なら yuumeinara | — | “if it is ~”. |
| Conditional (~たら) | 有名だったら yuumeidattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 有名になる yuumeininaru | 有名になります yuumeininarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 有名すぎる yuumeisugiru | 有名すぎます yuumeisugimasu | “too ~”. |
| Looks ~ (~そう) | 有名そう yuumeisou | 有名そうです yuumeisoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
Na-adjectives behave like nouns. The word itself never changes — you conjugate だ/です after it, and you need な to put it in front of a noun.
See the full rules in the adjective conjugation guide.