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Japanese Verb Causative Form

V-させる・動詞使役形・どうししえきけい

1. What is the Causative Form?

The causative form in Japanese indicates making someone do something or allowing someone to do something. It expresses command, permission, coercion, or request in sentences.

2. Main Uses of the Causative Form

3. How to Form the Causative

The causative form varies depending on the type of verb.

3.1 Group 1 Verbs (Godan Verbs)

For Group 1 verbs, replace the final syllable of the verb with its corresponding "a-row" sound and add 「せる」.

Verb Ending Causative Form Ending Example (Dictionary Form) Example (Causative Form)
~う → ~わせる 会う (あう) 会わせる (あわせる)
~つ → ~たせる 持つ (もつ) 持たせる (もたせる)
~る → ~らせる 取る (とる) 取らせる (とらせる)
~む → ~ませる 飲む (のむ) 飲ませる (のませる)
~ぬ → ~なせる 死ぬ (しぬ) 死なせる (しなせる)
~ぶ → ~ばせる 遊ぶ (あそぶ) 遊ばせる (あそばせる)
~く → ~かせる 書く (かく) 書かせる (かかせる)
~ぐ → ~がせる 泳ぐ (およぐ) 泳がせる (およがせる)
~す → ~させる 話す (はなす) 話させる (はなさせる)

3.2 Group 2 Verbs (Ichidan Verbs)

For Group 2 verbs, remove the final 「る」 from the verb and add 「させる」.

Verb Ending Causative Form Ending Example (Dictionary Form) Example (Causative Form)
~る → ~させる 食べる (たべる) 食べさせる (たべさせる)
見る (みる) 見させる (みさせる)

3.3 Irregular Verbs

Irregular verbs follow specific causative form patterns:

Verb Causative Form Example (Dictionary Form) Example (Causative Form)
する → させる する させる
来る (くる) → 来させる 来る (くる) 来させる (こさせる)

4. Examples of the Causative Form in Use

Here are some examples of how the causative form is used in different contexts:

  1. Command:

    • 私は彼に部屋を掃除させた。
      (I made him clean the room.)
  2. Permission:

    • 母は私にお菓子を食べさせてくれた。
      (My mother let me eat sweets.)
  3. Coercion:

    • 先生は学生に宿題をたくさんやらせた。
      (The teacher made the students do a lot of homework.)
  4. Request:

    • 部長が私に報告書を書かせてください。
      (Please let me write the report, boss.)
  5. Obligation:

    • 彼女に会わせてください。
      (Please let me meet her.)

5. Summary

The causative form is an essential structure in Japanese for expressing commands, permissions, and requests. Understanding how to form and use the causative will help improve the accuracy and fluency of daily conversations.