好調 (kouchou) conjugation
satisfactory, in good shape
好調 (こうちょう, kouchou) 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 | 好調だ kouchouda | 好調です kouchoudesu | The form you look up. Also the casual “is ~”. |
| Negative | 好調じゃない kouchoujanai | 好調じゃないです kouchoujanaidesu | “is not ~”. |
| Past | 好調だった kouchoudatta | 好調でした kouchoudeshita | “was ~”. |
| Past negative | 好調じゃなかった kouchoujanakatta | 好調じゃなかったです kouchoujanakattadesu | “was not ~”. |
| Te-form | 好調で kouchoude | — | Links to the next clause: “~ and …”. |
| Adverb | 好調に kouchouni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 好調な〜 kouchouna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 好調なら kouchounara | — | “if it is ~”. |
| Conditional (~たら) | 好調だったら kouchoudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 好調になる kouchouninaru | 好調になります kouchouninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 好調すぎる kouchousugiru | 好調すぎます kouchousugimasu | “too ~”. |
| Looks ~ (~そう) | 好調そう kouchousou | 好調そうです kouchousoudesu | “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.