異常 (ijou) conjugation
strangeness, abnormality, disorder
異常 (いじょう, ijou) 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 | 異常だ ijouda | 異常です ijoudesu | The form you look up. Also the casual “is ~”. |
| Negative | 異常じゃない ijoujanai | 異常じゃないです ijoujanaidesu | “is not ~”. |
| Past | 異常だった ijoudatta | 異常でした ijoudeshita | “was ~”. |
| Past negative | 異常じゃなかった ijoujanakatta | 異常じゃなかったです ijoujanakattadesu | “was not ~”. |
| Te-form | 異常で ijoude | — | Links to the next clause: “~ and …”. |
| Adverb | 異常に ijouni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 異常な〜 ijouna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 異常なら ijounara | — | “if it is ~”. |
| Conditional (~たら) | 異常だったら ijoudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 異常になる ijouninaru | 異常になります ijouninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 異常すぎる ijousugiru | 異常すぎます ijousugimasu | “too ~”. |
| Looks ~ (~そう) | 異常そう ijousou | 異常そうです ijousoudesu | “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.