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Japanese verb丈夫 (joubu) Conjugation
丈夫 (joubu) means “sturdy, strong”. It is a な-adjective verb. It is a な-adjective: it takes な before a noun (丈夫な) and だ or です after it, so 丈夫だ, 丈夫でした, 丈夫に. 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
- sturdy, strong
- Type
- な-adjective
- Dictionary form
- 丈夫
- Reading
- じょうぶ
- Romaji
- joubu
- Negative
- 丈夫じゃない
- Past
- 丈夫だった
- Te-form
- 丈夫で
- Adverb
- 丈夫に
Basic forms
Present現在形・辞書形
| Plain | 丈夫だ |
|---|---|
| Plain negative | 丈夫じゃない / 丈夫ではない |
| Polite | 丈夫です |
| Polite negative | 丈夫じゃありません / 丈夫ではありません |
Past過去形・た形
| Plain | 丈夫だった |
|---|---|
| Plain negative | 丈夫じゃなかった / 丈夫ではなかった |
| Polite | 丈夫でした |
| Polite negative | 丈夫じゃありませんでした / 丈夫ではありませんでした |
Te-formて形
| Plain | 丈夫で |
|---|---|
| Plain negative | 丈夫じゃなくて / 丈夫ではなくて |
Can and if
Conditional (-ba)仮定形・ば
| Plain | 丈夫なら |
|---|---|
| Plain negative | 丈夫でなければ |
Conditional (-tara)たら
| Plain | 丈夫だったら |
|---|---|
| Plain negative | 丈夫じゃなかったら / 丈夫ではなかったら |
Adjectives
Adverb (adjectives)連用形
| Adverb | 丈夫に |
|---|
More common Japanese verbs and adjectives
- 下手 (heta)bad at
- 大丈夫 (daijoubu)all right, OK
- 簡単 (kantan)easy, simple
- 大切 (taisetsu)important, precious
- 大変 (taihen)hard, tough
- 暇 (hima)free (not busy)
- 残念 (zannen)a pity, too bad
- 特別 (tokubetsu)special
- 必要 (hitsuyou)necessary
- 自由 (jiyuu)free (to do as you like)
- 安全 (anzen)safe
- 危険 (kiken)dangerous
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 丈夫 (joubu) 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.