消す
けす
to erase, to delete, to turn off power
Kesu (消す) is a godan verb meaning "to erase, to delete, to turn off power". Its polite form is 消します (keshimasu), its te form is 消して (keshite), its past form is 消した (keshita), and its negative form is 消さない (kesanai).
Godan verbJLPT N5
Kesu (消す) conjugation quick reference
消す means "to erase, to delete, to turn off power". Its main forms are listed below, with links to the grammar pattern behind each form.
Kesu example sentences
ライトを消します。
I will turn off the light.
テレビを消しました。
I turned off the TV.
エアコンを消しません。
I won’t turn off the air conditioner.
How to use Kesu: grammar notes
•Use を after the thing you’re turning off or erasing—like 電気を消す (turn off the light) or メッセージを消す (delete a message).
•Don’t confuse 消す (to turn something off) with 消える (to go off by itself)—消す needs a person doing the action.
•When talking about turning off electric devices or lights, say 電気を消してください (please turn off the light), not 電気が消す—が is for the subject, but here you need を for the object.
•JLPT N5 level
Common phrases with Kesu
電気を消す（でんきをけす）
Turn off the light
テレビを消す（てれびをけす）
Turn off the TV
黒板を消す（こくばんをけす）
Erase the blackboard
Kesu (消す) conjugation table
| Form | Japanese | Romaji |
|---|---|---|
| Basic Forms | ||
| Dictionary Form | 消す | kesu |
| Masu Form | 消します | keshimasu |
| Te Form | 消して | keshite |
| Past Form | 消した | keshita |
| Negative Form | 消さない | kesanai |
| Past Negative | 消さなかった | kesanakatta |
| Polite Forms | ||
| Polite Present | 消します | keshimasu |
| Polite Past | 消しました | keshimashita |
| Polite Negative | 消しません | keshimasen |
| Polite Past Negative | 消しませんでした | keshimasendeshita |
| Advanced Forms | ||
| Potential Form | 消せる | keseru |
| Passive Form | 消される | kesareru |
| Causative Form | 消させる | kesaseru |
| Causative Passive | 消さされる | kesasareru |
| Volitional Form | 消そう | kesou |
| Imperative Form | 消せ | kese |
| Conditional Forms | ||
| Conditional (ば) | 消せば | keseba |
| Conditional (たら) | 消したら | keshitara |
| Other Forms | ||
| Progressive Form | 消している | keshiteiru |
| Desire (たい) | 消したい | keshitai |
| Prohibition | 消すな | kesuna |