大胆 (daitan) conjugation
bold, daring, audacious
大胆 (だいたん, daitan) 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 | 大胆だ daitanda | 大胆です daitandesu | The form you look up. Also the casual “is ~”. |
| Negative | 大胆じゃない daitanjanai | 大胆じゃないです daitanjanaidesu | “is not ~”. |
| Past | 大胆だった daitandatta | 大胆でした daitandeshita | “was ~”. |
| Past negative | 大胆じゃなかった daitanjanakatta | 大胆じゃなかったです daitanjanakattadesu | “was not ~”. |
| Te-form | 大胆で daitande | — | Links to the next clause: “~ and …”. |
| Adverb | 大胆に daitanni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 大胆な〜 daitanna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 大胆なら daitannara | — | “if it is ~”. |
| Conditional (~たら) | 大胆だったら daitandattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 大胆になる daitanninaru | 大胆になります daitanninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 大胆すぎる daitansugiru | 大胆すぎます daitansugimasu | “too ~”. |
| Looks ~ (~そう) | 大胆そう daitansou | 大胆そうです daitansoudesu | “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.