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Last Updated:2026/07/27
Sentence

Since the room is hot, I open the window to ventilate.

Related words

換氣かんきする

Hiragana
かんきする
Kanji
換気する
Verb
form-of kyūjitai

Kyūjitai form of 換気 (“to ventilate”)

Lemma: 換気

Since the room is hot, I open the window to ventilate.

Word Forms

The basic and commonly used forms of this verb.

Basic forms
Form Word form Usage
Imperfective form (mizenkei)
Alternative: 換氣せ 換氣さ
Connects to endings such as nai, reru, and seru.
Continuative form (renyokei) Connects to endings such as masu, tai, and ta.
Conclusive form (shushikei) Ends a sentence and serves as the dictionary form.
Attributive form (rentaikei) Modifies a noun.
Conditional form (kateikei) Combines with ba to express a condition.
Imperative form (meireikei)
Alternative: 換氣せよ
Expresses a command or instruction.
Common forms
Form Word form Usage
Te-form Connects clauses with te.
Ta-form Expresses the past with ta.
Nai-form
Alternative: 換氣せぬ 換氣せん
Expresses negation with nai.
Masu-form Used for polite speech.
Ba-form Expresses a condition with ba.
Volitional form Expresses intention or invitation.
Notes
  • 「換氣する」は「換気する」の旧字体表記。
  • 未然形「換氣せ」は古風・文語的用法や助動詞接続で現れることがある。
  • 未然形「換氣さ」は主に「換氣される」などの接続で用いられる。

Japanese - Multilingual

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