開く

あくaku

open

Godan verb, group 1, ending -ku.

Conjugated like 聞く, つく, 書く, 鳴く, 空く, 空く

  • Another 開く

    Written the same way, 開く read ひらく is another verb, with its own page.

Newbie

The polite forms to talk about now, the future, and the past, and the te-form of requests.

  1. Polite present · -masu

    What you do, usually or soon, said politely. Japanese has one form for the present and the future.

    1. affirmative開きますあきますakimasu
    2. negative開きませんあきませんakimasen

  2. Polite past · -mashita

    What you did, or did not do, said politely.

    1. affirmative開きましたあきましたakimashita
    2. negative開きませんでしたあきませんでしたakimasen deshita

  3. Te-form

    Links actions (and then…), and with ください asks politely.

    1. 開いてあいてaite
    2. request開いてくださいあいてくださいaite kudasai

  4. Let’s · -mashō

    To suggest doing something together: let’s…

    1. 開きましょうあきましょうakimashō

  5. Wanting to · -tai

    What you want to do. Add です to be polite.

    1. affirmative開きたいあきたいakitai
    2. negative開きたくないあきたくないakitakunai
BeginnerThe plain forms of everyday speech, what is going on, what you can do, conditions, and the passive.Plain present · dictionary form · Plain past · -ta · Ongoing · -te iru · Potential · If, when · -tara · PassiveAlso show the Beginner forms (6)

  1. Plain present · dictionary form

    Between friends and family, and before a noun or many phrases. It also says the future.

    1. affirmative開くあくaku
    2. negative開かないあかないakanai

  2. Plain past · -ta

    The past between friends and family, and before a noun.

    1. affirmative開いたあいたaita
    2. negative開かなかったあかなかったakanakatta

  3. Ongoing · -te iru

    What is going on now, a habit, or a state that lasts: 結婚している, to be married.

    1. plain開いているあいているaite iru
    2. polite開いていますあいていますaite imasu

  4. Potential

    What you can do. Its object often takes が: 日本語が話せる.

    1. plain開けるあけるakeru
    2. polite開けますあけますakemasu

  5. If, when · -tara

    If or once something happens, and what you found when it did.

    1. 開いたらあいたらaitara

  6. Passive

    What is done to someone, often to their regret: に marks who does it. It is also a respectful way to speak of others.

    1. plain開かれるあかれるakareru
    2. polite開かれますあかれますakaremasu
IntermediateIntentions, orders, conditions, making someone do something, and the verbs of respect and modesty.Volitional · -ō, -yō · Command · Condition · -ba · Causative · Causative passiveAlso show the Intermediate forms (5)

  1. Volitional · -ō, -yō

    Let’s, between friends; with と思う, what you intend to do.

    1. 開こうあこうakō

  2. Command

    A blunt order or ban (〜な), heard in sports, on signs, and between men. Politely, say 〜てください.

    1. order開けあけake
    2. ban開くなあくなaku na

  3. Condition · -ba

    If…: the condition for what follows. In the negative, it also says what you must do: 〜なければならない.

    1. affirmative開けばあけばakeba
    2. negative開かなければあかなければakanakereba

  4. Causative

    Making or letting someone do something: に or を marks who does it.

    1. plain開かせるあかせるakaseru
    2. polite開かせますあかせますakasemasu

  5. Causative passive

    Being made to do something you did not want to. In speech, godan verbs often shorten -aserareru to -asareru.

    1. plain開かせられるあかせられるakaserareru
    2. polite開かせられますあかせられますakaseraremasu