透明 (toumei) conjugation
transparency, cleanness
透明 (とうめい, toumei) 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 | 透明だ toumeida | 透明です toumeidesu | The form you look up. Also the casual “is ~”. |
| Negative | 透明じゃない toumeijanai | 透明じゃないです toumeijanaidesu | “is not ~”. |
| Past | 透明だった toumeidatta | 透明でした toumeideshita | “was ~”. |
| Past negative | 透明じゃなかった toumeijanakatta | 透明じゃなかったです toumeijanakattadesu | “was not ~”. |
| Te-form | 透明で toumeide | — | Links to the next clause: “~ and …”. |
| Adverb | 透明に toumeini | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 透明な〜 toumeina〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 透明なら toumeinara | — | “if it is ~”. |
| Conditional (~たら) | 透明だったら toumeidattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 透明になる toumeininaru | 透明になります toumeininarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 透明すぎる toumeisugiru | 透明すぎます toumeisugimasu | “too ~”. |
| Looks ~ (~そう) | 透明そう toumeisou | 透明そうです toumeisoudesu | “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.