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fluentbyear

JAPANESE VERB

けす

消す

to turn off, to erase

  • #361 most used
  • Godan verb (u-verb)

Conjugation

Tap any form to hear it. The part that changes is in colour.

Present and future

now, habits, and what is to come

Form Polite Plain
AffirmativeI turn off
NegativeI don’t turn off

Past

finished actions

Form Polite Plain
AffirmativeI turned off
NegativeI didn’t turn off

Te-form

て形 · joining actions, “doing”, requests

Form Polite Plain
て-formturning off, and…
Doing now (て います)I am turning off
Please (て ください)please turn off

Potential

可能形 · “can”

Form Polite Plain
AffirmativeI can turn off
NegativeI can’t turn off

Want to

たい形 · “want to”

Form Polite Plain
AffirmativeI want to turn off
NegativeI don’t want to turn off

Volitional

意向形 · “let’s”, “I’ll”

Form Polite Plain
Let’slet’s turn off

Conditional

条件形 · “if” and “when”

  1. If (ば) if I turn off
  2. If, when (たら) if I turn off

Commands and requests

命令形 · from gentle to blunt

  1. Do it (なさい) turn off (do it)
  2. Plain command turn off!
  3. Please don’t please don’t turn off

Passive and causative

受身形・使役形 · “is done”, “make someone do”

Form Polite Plain
PassiveI am turned off
CausativeI make someone turn off

How to use けす

One sentence for each tense, the way people say it.

  1. Present and future

    でる とき、 でんき を けします。

    When I leave, I turn the lights off.

  2. Past

    まちがえて だいじな メール を けした。

    I deleted an important email by mistake.

  3. Te-form

    ねる まえ に、 ストーブ を けして ください。

    Please turn off the heater before bed.

  4. Potential

    この ペン は、 かいた あと に けせます。

    This pen can be erased after writing.

  5. Want to

    わかい ころ の しゃしん を ぜんぶ けしたい。

    I want to delete all the photos from when I was young.

  6. Volitional

    もったいない から、 でんき を けそう。

    It's a waste, so let's turn off the light.

  7. Conditional

    いちど けしたら、 もう もどりません よ。

    Once you delete it, it won't come back.

  8. Commands and requests

    じゅぎょう ちゅう は スマホ の でんげん を けしなさい。

    During class, turn your phone off.

  9. Passive and causative

    おとうと に セーブ データ を けされた。

    My little brother deleted my save data.

Good to know

  • けす is both to turn off a light or a machine and to erase or delete; きえる is for what goes off or disappears by itself.

Verbs like this one

The same pattern, on other verbs: godan verb (u-verb).