適宜 (tekigi) conjugation
suitability
適宜 (てきぎ, tekigi) 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 | 適宜だ tekigida | 適宜です tekigidesu | The form you look up. Also the casual “is ~”. |
| Negative | 適宜じゃない tekigijanai | 適宜じゃないです tekigijanaidesu | “is not ~”. |
| Past | 適宜だった tekigidatta | 適宜でした tekigideshita | “was ~”. |
| Past negative | 適宜じゃなかった tekigijanakatta | 適宜じゃなかったです tekigijanakattadesu | “was not ~”. |
| Te-form | 適宜で tekigide | — | Links to the next clause: “~ and …”. |
| Adverb | 適宜に tekigini | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 適宜な〜 tekigina〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 適宜なら tekiginara | — | “if it is ~”. |
| Conditional (~たら) | 適宜だったら tekigidattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 適宜になる tekigininaru | 適宜になります tekigininarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 適宜すぎる tekigisugiru | 適宜すぎます tekigisugimasu | “too ~”. |
| Looks ~ (~そう) | 適宜そう tekigisou | 適宜そうです tekigisoudesu | “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.