有望 (yuubou) conjugation
good prospects, full of hope, promising
有望 (ゆうぼう, yuubou) 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 | 有望だ yuubouda | 有望です yuuboudesu | The form you look up. Also the casual “is ~”. |
| Negative | 有望じゃない yuuboujanai | 有望じゃないです yuuboujanaidesu | “is not ~”. |
| Past | 有望だった yuuboudatta | 有望でした yuuboudeshita | “was ~”. |
| Past negative | 有望じゃなかった yuuboujanakatta | 有望じゃなかったです yuuboujanakattadesu | “was not ~”. |
| Te-form | 有望で yuuboude | — | Links to the next clause: “~ and …”. |
| Adverb | 有望に yuubouni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 有望な〜 yuubouna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 有望なら yuubounara | — | “if it is ~”. |
| Conditional (~たら) | 有望だったら yuuboudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 有望になる yuubouninaru | 有望になります yuubouninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 有望すぎる yuubousugiru | 有望すぎます yuubousugimasu | “too ~”. |
| Looks ~ (~そう) | 有望そう yuubousou | 有望そうです yuubousoudesu | “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.