好ましい (konomashii) conjugation
nice, likable, desirable
好ましい (このましい, konomashii) is an i-adjective. I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
Conjugation table
| Form | Plain (casual) | Polite (~です) | When you use it |
|---|---|---|---|
| Dictionary / plain | 好ましい konomashii | 好ましいです konomashiidesu | The form you look up. Also the casual “is ~”. |
| Negative | 好ましくない konomashikunai | 好ましくないです konomashikunaidesu | “is not ~”. |
| Past | 好ましかった konomashikatta | 好ましかったです konomashikattadesu | “was ~”. |
| Past negative | 好ましくなかった konomashikunakatta | 好ましくなかったです konomashikunakattadesu | “was not ~”. |
| Te-form | 好ましくて konomashikute | — | Links to the next clause: “~ and …”. |
| Adverb | 好ましく konomashiku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 好ましい〜 konomashii〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 好ましければ konomashikereba | — | “if it is ~”. |
| Conditional (~たら) | 好ましかったら konomashikattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 好ましくなる konomashikunaru | 好ましくなります konomashikunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 好ましすぎる konomashisugiru | 好ましすぎます konomashisugimasu | “too ~”. |
| Looks ~ (~そう) | 好ましそう konomashisou | 好ましそうです konomashisoudesu | “looks / seems ~” from appearance. |
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Why it conjugates this way
I-adjectives carry their own tense: drop the final い and the endings attach straight to the stem. No だ, no です needed to make a complete sentence.
See the full rules in the adjective conjugation guide.