← All Japanese verbs and adjectives
Japanese verb確実 (kakujitsu) Conjugation
確実 (kakujitsu) means “certain, sure, definite”. It is a な-adjective verb. It is a な-adjective: it takes な before a noun (確実な) and だ or です after it, so 確実だ, 確実でした, 確実に. 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
- certain, sure, definite
- Type
- な-adjective
- Dictionary form
- 確実
- Reading
- かくじつ
- Romaji
- kakujitsu
- Negative
- 確実じゃない
- Past
- 確実だった
- Te-form
- 確実で
- Adverb
- 確実に
Basic forms
Present現在形・辞書形
| Plain | 確実だ |
|---|---|
| Plain negative | 確実じゃない / 確実ではない |
| Polite | 確実です |
| Polite negative | 確実じゃありません / 確実ではありません |
Past過去形・た形
| Plain | 確実だった |
|---|---|
| Plain negative | 確実じゃなかった / 確実ではなかった |
| Polite | 確実でした |
| Polite negative | 確実じゃありませんでした / 確実ではありませんでした |
Te-formて形
| Plain | 確実で |
|---|---|
| Plain negative | 確実じゃなくて / 確実ではなくて |
Can and if
Conditional (-ba)仮定形・ば
| Plain | 確実なら |
|---|---|
| Plain negative | 確実でなければ |
Conditional (-tara)たら
| Plain | 確実だったら |
|---|---|
| Plain negative | 確実じゃなかったら / 確実ではなかったら |
Adjectives
Adverb (adjectives)連用形
| Adverb | 確実に |
|---|
More common Japanese verbs and adjectives
- 反対 (hantai)opposition, resistance, antagonism
- 平和 (heiwa)peace, harmony
- 明らか (akiraka)clear, obvious, evident
- 連続 (renzoku)continuous
- 行う (okonau)to perform, to do, to conduct oneself
- 安定 (antei)stable
- 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
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 確実 (kakujitsu) 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.