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Japanese verb減らす (herasu) Conjugation
減らす (herasu) means “to abate, to decrease, to diminish”. It is a う-verb (godan) verb. It is an う-verb (godan): the last sound changes, 減らさない and 減らします, and the te-form is 減らして. 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 abate, to decrease, to diminish
- Type
- う-verb (godan)
- Dictionary form
- 減らす
- Reading
- へらす
- Romaji
- herasu
- Masu form
- 減らします
- Nai form
- 減らさない
- Te-form
- 減らして
- Ta form
- 減らした
Basic forms
Present現在形・辞書形
| Plain | 減らす |
|---|---|
| Plain negative | 減らさない |
| Polite | 減らします |
| Polite negative | 減らしません |
Past過去形・た形
| Plain | 減らした |
|---|---|
| Plain negative | 減らさなかった |
| Polite | 減らしました |
| Polite negative | 減らしませんでした |
Te-formて形
| Plain | 減らして |
|---|---|
| Plain negative | 減らさないで |
Progressive (-te iru)ている
| Plain | 減らしている |
|---|---|
| Plain negative | 減らしていない |
| Polite | 減らしています |
| Polite negative | 減らしていません |
Wanting, inviting, telling
Want to (-tai)たい形
| Plain | 減らしたい |
|---|---|
| Plain negative | 減らしたくない |
| Polite | 減らしたいです |
| Polite negative | 減らしたくないです |
Volitional意向形
| Plain | 減らそう |
|---|---|
| Polite | 減らしましょう |
Imperative and requests命令形
| Plain command | 減らせ |
|---|---|
| Plain negative (don't) | 減らすな |
| Polite request (-te kudasai) | 減らしてください |
| Polite negative (-naide kudasai) | 減らさないでください |
Can and if
Potential可能形
| Plain | 減らせる |
|---|---|
| Plain negative | 減らせない |
| Polite | 減らせます |
| Polite negative | 減らせません |
Conditional (-ba)仮定形・ば
| Plain | 減らせば |
|---|---|
| Plain negative | 減らさなければ |
Conditional (-tara)たら
| Plain | 減らしたら |
|---|---|
| Plain negative | 減らさなかったら |
Passive and causative
Passive受身形
| Plain | 減らされる |
|---|---|
| Plain negative | 減らされない |
| Polite | 減らされます |
| Polite negative | 減らされません |
Causative使役形
| Plain | 減らさせる |
|---|---|
| Plain negative | 減らさせない |
| Polite | 減らさせます |
| Polite negative | 減らさせません |
Causative passive使役受身形
| Plain | 減らさせられる |
|---|---|
| Plain negative | 減らさせられない |
| Polite | 減らさせられます |
| Polite negative | 減らさせられません |
More common Japanese verbs and adjectives
- 割り出す (waridasu)to calculate, to compute
- 感じ取る (kanjitoru)to perceive, to sense, to take in
- 間に合う (maniau)to be in time
- 休まる (yasumaru)to be rested, to feel at ease, to repose
- 吸い込む (suikomu)to inhale, to breathe in, to suck up
- 恐ろしい (osoroshii)terrible, dreadful, terrifying
- 減る (heru)to decrease, to diminish, to abate
- 広まる (hiromaru)to spread, to be propagated
- 告げる (tsugeru)to tell, to inform, to announce
- 際立つ (kiwadatsu)to be prominent, to be conspicuous, to stand out
- 削る (kezuru)to shave, to sharpen, to plane
- 刺す (sasu)to pierce, to stab, to prick
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 減らす (herasu) 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.