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Japanese verb十分 (juubun) Conjugation
十分 (juubun) means “enough, sufficient, plenty”. It is a な-adjective verb. It is a な-adjective: it takes な before a noun (十分な) and だ or です after it, so 十分だ, 十分でした, 十分に. Below is its conjugation in all 14 forms, plain and polite, the same forms the Japanese verb conjugation worksheets print in their answer keys.
- Meaning
- enough, sufficient, plenty
- Type
- な-adjective
- Dictionary form
- 十分
- Reading
- じゅうぶん
- Romaji
- juubun
- Negative
- 十分じゃない
- Past
- 十分だった
- Te-form
- 十分で
- Adverb
- 十分に
Basic forms
Present現在形・辞書形
| Plain | 十分だ |
|---|---|
| Plain negative | 十分じゃない / 十分ではない |
| Polite | 十分です |
| Polite negative | 十分じゃありません / 十分ではありません |
Past過去形・た形
| Plain | 十分だった |
|---|---|
| Plain negative | 十分じゃなかった / 十分ではなかった |
| Polite | 十分でした |
| Polite negative | 十分じゃありませんでした / 十分ではありませんでした |
Te-formて形
| Plain | 十分で |
|---|---|
| Plain negative | 十分じゃなくて / 十分ではなくて |
Can and if
Conditional (-ba)仮定形・ば
| Plain | 十分なら |
|---|---|
| Plain negative | 十分でなければ |
Conditional (-tara)たら
| Plain | 十分だったら |
|---|---|
| Plain negative | 十分じゃなかったら / 十分ではなかったら |
Adjectives
Adverb (adjectives)連用形
| Adverb | 十分に |
|---|
More common Japanese verbs and adjectives
- 疑問 (gimon)doubt, question, suspicion
- 共通 (kyoutsuu)common, shared, mutual
- 緊急 (kinkyuu)urgency, emergency
- 健康 (kenkou)healthy, sound, fit
- 国際的 (kokusaiteki)international, worldwide, cross-border
- 主要 (shuyou)chief, main, principal
- 上がったり (agattari)doomed, in a bad state, poor
- 深刻 (shinkoku)serious, severe, grave
- 正式 (seishiki)formal, official, regular
- 正常 (seijou)normal, regular
- 直接 (chokusetsu)direct, immediate, personal
- 同様 (douyou)same, similar, like
About these tables
The forms are built from Wiktionary's conjugation tables, and they are the ones the Japanese verb conjugation worksheet generator prints, so a chart or answer key made there matches this page. That page explains how the forms were checked.
Print this verb chart opens 十分 (juubun) on the worksheet preview with every form filled in, ready to print on A4 or US Letter or save as PDF. To practice it with other verbs and adjectives, the generator also makes blank conjugation boxes and quick quizzes with answer keys. To practice online instead, the Japanese verb conjugation quiz marks each form as you type it.
Verbs, adjectives and their meanings come from JMdict, the property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. The forms are built by the standard rules, with the irregular ones written out.