消す（けす）Conjugation
JLPT N5 · Godan verb (Group 1) · Meaning: to erase/turn off
Full conjugation table
| Form | Japanese | Reading |
|---|---|---|
| Dictionary form The base form — casual speech and the stem for many grammar patterns. | 消す | けす |
| masu (polite present) Polite present/future affirmative. | 消します | けします |
| masen (polite negative) Polite present negative. | 消しません | けしません |
| mashita (polite past) Polite past affirmative. | 消しました | けしました |
| masen deshita (polite past neg.) Polite past negative. | 消しませんでした | けしませんでした |
| te-form The most versatile form — linking, requests, progressive and more. | 消して | けして |
| ta (plain past) Plain past affirmative. | 消した | けした |
| nai (plain negative) Plain present negative. | 消さない | けさない |
| nakatta (plain past neg.) Plain past negative. | 消さなかった | けさなかった |
| Potential Ability or possibility — 'can do'. | 消せる | けせる |
| Passive Passive voice — 'to be done to'. | 消される | けされる |
| Causative Causative — 'to make/let someone do'. | 消させる | けさせる |
| Volitional Volitional — 'let's…' or intention. | 消そう | けそう |
| Imperative Imperative — a strong command; used sparingly. | 消せ | けせ |
| Prohibitive Prohibitive — 'don't do it!'. | 消すな | けすな |
| Conditional (ba) Hypothetical 'if' — leans written. | 消せば | けせば |
| Conditional (tara) The most versatile everyday 'if / when'. | 消したら | けしたら |
Example sentences
- 部屋を出る時は電気を消す。 — Turn off the light when you leave the room.
- 間違えた字を消しゴムで消す。 — I erase the mistaken character with an eraser.
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