Conjugation

できる

dekiru

be able to

Ichidan verb, group 2.

Conjugated like 生まれる, 恵まれる, 報われる, 嫌われる, 巻き込まれる, 挟まれる

  • No potential

    できる already says an ability or a state: it has no potential form.

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できますdekimasu
    2. negativeできませんdekimasen

  2. Polite past · -mashita

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

    1. affirmativeできましたdekimashita
    2. negativeできませんでしたdekimasen deshita

  3. Te-form

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

    1. できてdekite
    2. requestできてくださいdekite kudasai

  4. Let’s · -mashō

    To suggest doing something together: let’s…

    1. できましょうdekimashō

  5. Wanting to · -tai

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

    1. affirmativeできたいdekitai
    2. negativeできたくないdekitakunai
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 · If, when · -taraAlso show the Beginner forms (4)

  1. Plain present · dictionary form

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

    1. affirmativeできるdekiru
    2. negativeできないdekinai

  2. Plain past · -ta

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

    1. affirmativeできたdekita
    2. negativeできなかったdekinakatta

  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できているdekite iru
    2. politeできていますdekite imasu

  4. If, when · -tara

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

    1. できたらdekitara
IntermediateIntentions, orders, conditions, making someone do something, and the verbs of respect and modesty.Volitional · -ō, -yō · Command · Condition · -baAlso show the Intermediate forms (3)

  1. Volitional · -ō, -yō

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

    1. できようdekiyō

  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できろdekiro
    2. banできるなdekiru 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できればdekireba
    2. negativeできなければdekinakereba