強力 (kyouryoku) conjugation
powerful, strong
強力 (きょうりょく, kyouryoku) 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 | 強力だ kyouryokuda | 強力です kyouryokudesu | The form you look up. Also the casual “is ~”. |
| Negative | 強力じゃない kyouryokujanai | 強力じゃないです kyouryokujanaidesu | “is not ~”. |
| Past | 強力だった kyouryokudatta | 強力でした kyouryokudeshita | “was ~”. |
| Past negative | 強力じゃなかった kyouryokujanakatta | 強力じゃなかったです kyouryokujanakattadesu | “was not ~”. |
| Te-form | 強力で kyouryokude | — | Links to the next clause: “~ and …”. |
| Adverb | 強力に kyouryokuni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 強力な〜 kyouryokuna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 強力なら kyouryokunara | — | “if it is ~”. |
| Conditional (~たら) | 強力だったら kyouryokudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 強力になる kyouryokuninaru | 強力になります kyouryokuninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 強力すぎる kyouryokusugiru | 強力すぎます kyouryokusugimasu | “too ~”. |
| Looks ~ (~そう) | 強力そう kyouryokusou | 強力そうです kyouryokusoudesu | “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.