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Japanese verbできる (dekiru) Conjugation
できる (dekiru) means “can, to be able to”. It is a る-verb (ichidan) verb. It is a る-verb (ichidan): drop the る and add the ending, so できます, できない, できて. 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
- can, to be able to
- Type
- る-verb (ichidan)
- Dictionary form
- できる
- Romaji
- dekiru
- Masu form
- できます
- Nai form
- できない
- Te-form
- できて
- Ta form
- できた
Basic forms
Present現在形・辞書形
| Plain | できる |
|---|---|
| Plain negative | できない |
| Polite | できます |
| Polite negative | できません |
Past過去形・た形
| Plain | できた |
|---|---|
| Plain negative | できなかった |
| Polite | できました |
| Polite negative | できませんでした |
Te-formて形
| Plain | できて |
|---|---|
| Plain negative | できないで |
Progressive (-te iru)ている
| Plain | できている |
|---|---|
| Plain negative | できていない |
| Polite | できています |
| Polite negative | できていません |
Wanting, inviting, telling
Want to (-tai)たい形
| Plain | できたい |
|---|---|
| Plain negative | できたくない |
| Polite | できたいです |
| Polite negative | できたくないです |
Volitional意向形
| Plain | できよう |
|---|---|
| Polite | できましょう |
Imperative and requests命令形
| Plain command | できろ |
|---|---|
| Plain negative (don't) | できるな |
| Polite request (-te kudasai) | できてください |
| Polite negative (-naide kudasai) | できないでください |
Can and if
Potential可能形
| Plain | できられる |
|---|---|
| Plain negative | できられない |
| Polite | できられます |
| Polite negative | できられません |
Conditional (-ba)仮定形・ば
| Plain | できれば |
|---|---|
| Plain negative | できなければ |
Conditional (-tara)たら
| Plain | できたら |
|---|---|
| Plain negative | できなかったら |
Passive and causative
Passive受身形
| Plain | できられる |
|---|---|
| Plain negative | できられない |
| Polite | できられます |
| Polite negative | できられません |
Causative使役形
| Plain | できさせる |
|---|---|
| Plain negative | できさせない |
| Polite | できさせます |
| Polite negative | できさせません |
Causative passive使役受身形
| Plain | できさせられる |
|---|---|
| Plain negative | できさせられない |
| Polite | できさせられます |
| Polite negative | できさせられません |
More common Japanese verbs and adjectives
- 着る (kiru)to wear (on the body)
- 脱ぐ (nugu)to take off (clothes)
- 見せる (miseru)to show
- 呼ぶ (yobu)to call
- 死ぬ (shinu)to die
- なる (naru)to become
- 出かける (dekakeru)to go out
- かかる (kakaru)to take (time, money)
- 売る (uru)to sell
- 送る (okuru)to send
- 考える (kangaeru)to think about, to consider
- 決める (kimeru)to decide
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 できる (dekiru) 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.