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Japanese verb正式 (seishiki) Conjugation
正式 (seishiki) means “formal, official, regular”. It is a な-adjective verb. It is a な-adjective: it takes な before a noun (正式な) and だ or です after it, so 正式だ, 正式でした, 正式に. 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
- formal, official, regular
- Type
- な-adjective
- Dictionary form
- 正式
- Reading
- せいしき
- Romaji
- seishiki
- Negative
- 正式じゃない
- Past
- 正式だった
- Te-form
- 正式で
- Adverb
- 正式に
Basic forms
Present現在形・辞書形
| Plain | 正式だ |
|---|---|
| Plain negative | 正式じゃない / 正式ではない |
| Polite | 正式です |
| Polite negative | 正式じゃありません / 正式ではありません |
Past過去形・た形
| Plain | 正式だった |
|---|---|
| Plain negative | 正式じゃなかった / 正式ではなかった |
| Polite | 正式でした |
| Polite negative | 正式じゃありませんでした / 正式ではありませんでした |
Te-formて形
| Plain | 正式で |
|---|---|
| Plain negative | 正式じゃなくて / 正式ではなくて |
Can and if
Conditional (-ba)仮定形・ば
| Plain | 正式なら |
|---|---|
| Plain negative | 正式でなければ |
Conditional (-tara)たら
| Plain | 正式だったら |
|---|---|
| Plain negative | 正式じゃなかったら / 正式ではなかったら |
Adjectives
Adverb (adjectives)連用形
| Adverb | 正式に |
|---|
More common Japanese verbs and adjectives
- 健康 (kenkou)healthy, sound, fit
- 国際的 (kokusaiteki)international, worldwide, cross-border
- 主要 (shuyou)chief, main, principal
- 十分 (juubun)enough, sufficient, plenty
- 上がったり (agattari)doomed, in a bad state, poor
- 深刻 (shinkoku)serious, severe, grave
- 正常 (seijou)normal, regular
- 直接 (chokusetsu)direct, immediate, personal
- 同様 (douyou)same, similar, like
- 独自 (dokuji)original, unique, distinctive
- 比べる (kuraberu)to compare, to make a comparison
- 非常 (hijou)extreme, great, extraordinary
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 正式 (seishiki) 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.