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Japanese verb買う (kau) Conjugation
買う (kau) means “to buy”. It is a う-verb (godan) verb. It is an う-verb (godan): the last sound changes, 買わない and 買います, and the te-form is 買って. 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
- to buy
- Type
- う-verb (godan)
- Dictionary form
- 買う
- Reading
- かう
- Romaji
- kau
- Masu form
- 買います
- Nai form
- 買わない
- Te-form
- 買って
- Ta form
- 買った
Basic forms
Present現在形・辞書形
| Plain | 買う |
|---|---|
| Plain negative | 買わない |
| Polite | 買います |
| Polite negative | 買いません |
Past過去形・た形
| Plain | 買った |
|---|---|
| Plain negative | 買わなかった |
| Polite | 買いました |
| Polite negative | 買いませんでした |
Te-formて形
| Plain | 買って |
|---|---|
| Plain negative | 買わないで |
Progressive (-te iru)ている
| Plain | 買っている |
|---|---|
| Plain negative | 買っていない |
| Polite | 買っています |
| Polite negative | 買っていません |
Wanting, inviting, telling
Want to (-tai)たい形
| Plain | 買いたい |
|---|---|
| Plain negative | 買いたくない |
| Polite | 買いたいです |
| Polite negative | 買いたくないです |
Volitional意向形
| Plain | 買おう |
|---|---|
| Polite | 買いましょう |
Imperative and requests命令形
| Plain command | 買え |
|---|---|
| Plain negative (don't) | 買うな |
| Polite request (-te kudasai) | 買ってください |
| Polite negative (-naide kudasai) | 買わないでください |
Can and if
Potential可能形
| Plain | 買える |
|---|---|
| Plain negative | 買えない |
| Polite | 買えます |
| Polite negative | 買えません |
Conditional (-ba)仮定形・ば
| Plain | 買えば |
|---|---|
| Plain negative | 買わなければ |
Conditional (-tara)たら
| Plain | 買ったら |
|---|---|
| Plain negative | 買わなかったら |
Passive and causative
Passive受身形
| Plain | 買われる |
|---|---|
| Plain negative | 買われない |
| Polite | 買われます |
| Polite negative | 買われません |
Causative使役形
| Plain | 買わせる |
|---|---|
| Plain negative | 買わせない |
| Polite | 買わせます |
| Polite negative | 買わせません |
Causative passive使役受身形
| Plain | 買わされる |
|---|---|
| Plain negative | 買わされない |
| Polite | 買わされます |
| Polite negative | 買わされません |
More common Japanese verbs and adjectives
- 飲む (nomu)to drink
- 見る (miru)to see, to watch
- 聞く (kiku)to hear, to listen, to ask
- 話す (hanasu)to speak, to talk
- 読む (yomu)to read
- 書く (kaku)to write
- 待つ (matsu)to wait
- 会う (au)to meet
- わかる (wakaru)to understand
- 思う (omou)to think
- 言う (iu)to say
- 知る (shiru)to know, to get to know
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 買う (kau) 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.