精巧 (seikou) conjugation
elaborate, delicate, exquisite
精巧 (せいこう, seikou) 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 | 精巧だ seikouda | 精巧です seikoudesu | The form you look up. Also the casual “is ~”. |
| Negative | 精巧じゃない seikoujanai | 精巧じゃないです seikoujanaidesu | “is not ~”. |
| Past | 精巧だった seikoudatta | 精巧でした seikoudeshita | “was ~”. |
| Past negative | 精巧じゃなかった seikoujanakatta | 精巧じゃなかったです seikoujanakattadesu | “was not ~”. |
| Te-form | 精巧で seikoude | — | Links to the next clause: “~ and …”. |
| Adverb | 精巧に seikouni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 精巧な〜 seikouna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 精巧なら seikounara | — | “if it is ~”. |
| Conditional (~たら) | 精巧だったら seikoudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 精巧になる seikouninaru | 精巧になります seikouninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 精巧すぎる seikousugiru | 精巧すぎます seikousugimasu | “too ~”. |
| Looks ~ (~そう) | 精巧そう seikousou | 精巧そうです seikousoudesu | “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.