消す: switching off or erasing. The examples use polite Japanese in everyday situations.
The idea
消す is a godan verb. The final す becomes します in the polite form and して in the て form. The polite non-past, negative and past forms are 消します、消しません、消しました. The て form is 消して. The thing affected by the action can be marked by を.
| Dictionary form | Polite non-past | Polite negative | Polite past | て form |
|---|---|---|---|---|
| 消す | 消します | 消しません | 消しました | 消して |
Examples
- 寝る前に電気を消します。I turn off the light before going to sleep.
- 黒板の字を消してください。Please erase the writing on the blackboard.
- 料理が終わって、火を消しました。After cooking, I turned off the heat.
- テレビを消して、本を読みます。I turn off the TV and read a book.
- このファイルはまだ消しません。I will not delete this file yet.
- 間違いを消しゴムで消しました。I erased the mistake with an eraser.
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Watch out
消す describes an action on something; its intransitive partner 消える describes the change.
Try it yourself
（消す→ます）＿
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消します
消します is the polite non-past form; context can indicate a habit or a future event.
（消す→て）＿
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消して
消して is the て form; it can connect clauses.
電気＿消します。（が／を）
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を
を marks the direct object of the action.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
（消す→ます）＿
（消す→て）＿
電気＿消します。（が／を）
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
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Make an original sentence, change it to the polite past and identify its particle. Compare your sentence with the examples.