素晴らしい (subarashii) conjugation
wonderful; terrific
素晴らしい (すばらしい, subarashii) 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 | 素晴らしい subarashii | 素晴らしいです subarashiidesu | The form you look up. Also the casual “is ~”. |
| Negative | 素晴らしくない subarashikunai | 素晴らしくないです subarashikunaidesu | “is not ~”. |
| Past | 素晴らしかった subarashikatta | 素晴らしかったです subarashikattadesu | “was ~”. |
| Past negative | 素晴らしくなかった subarashikunakatta | 素晴らしくなかったです subarashikunakattadesu | “was not ~”. |
| Te-form | 素晴らしくて subarashikute | — | Links to the next clause: “~ and …”. |
| Adverb | 素晴らしく subarashiku | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 素晴らしい〜 subarashii〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 素晴らしければ subarashikereba | — | “if it is ~”. |
| Conditional (~たら) | 素晴らしかったら subarashikattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 素晴らしくなる subarashikunaru | 素晴らしくなります subarashikunarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 素晴らしすぎる subarashisugiru | 素晴らしすぎます subarashisugimasu | “too ~”. |
| Looks ~ (~そう) | 素晴らしそう subarashisou | 素晴らしそうです subarashisoudesu | “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.