莫大 (bakudai) conjugation
enormous, vast
莫大 (ばくだい, bakudai) 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 | 莫大だ bakudaida | 莫大です bakudaidesu | The form you look up. Also the casual “is ~”. |
| Negative | 莫大じゃない bakudaijanai | 莫大じゃないです bakudaijanaidesu | “is not ~”. |
| Past | 莫大だった bakudaidatta | 莫大でした bakudaideshita | “was ~”. |
| Past negative | 莫大じゃなかった bakudaijanakatta | 莫大じゃなかったです bakudaijanakattadesu | “was not ~”. |
| Te-form | 莫大で bakudaide | — | Links to the next clause: “~ and …”. |
| Adverb | 莫大に bakudaini | — | Turns it into “~ly”, describing a verb. |
| Before a noun | 莫大な〜 bakudaina〜 | — | How it attaches when it modifies a noun. |
| Conditional (~ば/なら) | 莫大なら bakudainara | — | “if it is ~”. |
| Conditional (~たら) | 莫大だったら bakudaidattara | — | “if / when it is ~”. The everyday conditional. |
| Become (~なる) | 莫大になる bakudaininaru | 莫大になります bakudaininarimasu | “becomes ~” — the change-of-state form. |
| Too much (~すぎる) | 莫大すぎる bakudaisugiru | 莫大すぎます bakudaisugimasu | “too ~”. |
| Looks ~ (~そう) | 莫大そう bakudaisou | 莫大そうです bakudaisoudesu | “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.