窮屈 (kyuukutsu) conjugation
narrow, tight, formal
窮屈 (きゅうくつ, kyuukutsu) 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 | 窮屈だ kyuukutsuda | 窮屈です kyuukutsudesu | The form you look up. Also the casual “is ~”. |
| Negative | 窮屈じゃない kyuukutsujanai | 窮屈じゃないです kyuukutsujanaidesu | “is not ~”. |
| Past | 窮屈だった kyuukutsudatta | 窮屈でした kyuukutsudeshita | “was ~”. |
| Past negative | 窮屈じゃなかった kyuukutsujanakatta | 窮屈じゃなかったです kyuukutsujanakattadesu | “was not ~”. |
| Te-form | 窮屈で kyuukutsude | — | Links to the next clause: “~ and …”. |
| Adverb | 窮屈に kyuukutsuni | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 窮屈な〜 kyuukutsuna〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 窮屈なら kyuukutsunara | — | “if it is ~”. |
| Conditional (~たら) | 窮屈だったら kyuukutsudattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 窮屈になる kyuukutsuninaru | 窮屈になります kyuukutsuninarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 窮屈すぎる kyuukutsusugiru | 窮屈すぎます kyuukutsusugimasu | “too ~”. |
| Looks ~ (~そう) | 窮屈そう kyuukutsusou | 窮屈そうです kyuukutsusoudesu | “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.