Conjugation

手伝う

てつだうtetsudau

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Godan verb, group 1, ending -u.

Conjugated like 言う, 思う, 使う, 争う, 雇う, 味わう

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手伝いますてつだいますtetsudaimasu
    2. negative手伝いませんてつだいませんtetsudaimasen

  2. Polite past · -mashita

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

    1. affirmative手伝いましたてつだいましたtetsudaimashita
    2. negative手伝いませんでしたてつだいませんでしたtetsudaimasen deshita

  3. Te-form

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

    1. 手伝っててつだってtetsudatte
    2. request手伝ってくださいてつだってくださいtetsudatte kudasai

  4. Let’s · -mashō

    To suggest doing something together: let’s…

    1. 手伝いましょうてつだいましょうtetsudaimashō

  5. Wanting to · -tai

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

    1. affirmative手伝いたいてつだいたいtetsudaitai
    2. negative手伝いたくないてつだいたくないtetsudaitakunai
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手伝うてつだうtetsudau
    2. negative手伝わないてつだわないtetsudawanai

  2. Plain past · -ta

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

    1. affirmative手伝ったてつだったtetsudatta
    2. negative手伝わなかったてつだわなかったtetsudawanakatta

  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手伝っているてつだっているtetsudatte iru
    2. polite手伝っていますてつだっていますtetsudatte imasu

  4. Potential

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

    1. plain手伝えるてつだえるtetsudaeru
    2. polite手伝えますてつだえますtetsudaemasu

  5. If, when · -tara

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

    1. 手伝ったらてつだったらtetsudattara

  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手伝われるてつだわれるtetsudawareru
    2. polite手伝われますてつだわれますtetsudawaremasu
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. 手伝おうてつだおうtetsudaō

  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手伝えてつだえtetsudae
    2. ban手伝うなてつだうなtetsudau 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手伝えばてつだえばtetsudaeba
    2. negative手伝わなければてつだわなければtetsudawanakereba

  4. Causative

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

    1. plain手伝わせるてつだわせるtetsudawaseru
    2. polite手伝わせますてつだわせますtetsudawasemasu

  5. Causative passive

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

    1. plain手伝わせられるてつだわせられるtetsudawaserareru
    2. polite手伝わせられますてつだわせられますtetsudawaseraremasu