Causative Voice (させる)
Learning Objectives
- Conjugate verbs into the causative form.
- Express 'making' someone do an action (force/command).
- Express 'letting/allowing' someone to do an action (permission).
- Combine the causative form with giving/receiving verbs (〜せていただく).
In Japanese, when someone causes someone else to do an action—whether by forcing them (“The teacher made the students run”) or permitting them (“The mother let the child play”)—you use the Causative Form (使役形 - shiekikei). Let’s learn how to conjugate and use this authoritative structure.
1. Conjugating the Causative Form
The conjugation rules for the causative form are very similar to the passive form, but we use せる instead of れる.
Group 1 (U-Verbs)
Change the final 〜u sound to the 〜a sound, and add せる (seru).
- 書く (kaku) ➔ 書かせる (kakaseru - to make/let write)
- 飲む (nomu) ➔ 飲ませる (nomaseru - to make/let drink)
- 待つ (matsu) ➔ 待たせる (mataseru - to make/let wait)
- 手伝う (tetsudau) ➔ 手伝わせる (tetsudawaseru - to make/let help)
Group 2 (Ru-Verbs)
Drop the る and add させる (saseru).
- 食べる (taberu) ➔ 食べさせる (tabesaseru - to make/let eat)
- 見る (miru) ➔ 見させる (misaseru - to make/let see)
Group 3 (Irregular Verbs)
- 来る (kuru) ➔ 来させる (kosaseru - to make/let come)
- する (suru) ➔ させる (saseru - to make/let do)
2. Making vs. Letting (Force vs. Permission)
The causative form has two main meanings: Force/Command (“I made him do it”) and Permission (“I let him do it”). The translation entirely depends on the context!
Both structures use the exact same grammar pattern. The key is knowing if the action is inherently undesirable (Force) or desirable (Permission).
A. Intransitive Verbs (No Direct Object)
When using verbs that don’t take a direct object (like run, go, cry), the person who is made/allowed to do the action is marked with を.
Pattern: [Director] は [Cast Member] を [Intransitive Causative]
先生は学生を走らせました。
sensei wa gakusei o hashirasemashita.
The teacher made the students run. (Force)
母は子供を公園で遊ばせました。
haha wa kodomo o kouen de asobasemashita.
The mother let the child play in the park. (Permission)
B. Transitive Verbs (Takes a Direct Object)
To avoid having two を particles in one sentence, when the verb takes a direct object, the person made/allowed to do the action is marked with に.
Pattern: [Director] は [Cast Member] に [Direct Object] を [Transitive Causative]
父は弟に部屋の掃除をさせました。
chichi wa otouto ni heya no souji o sasemashita.
My father made my younger brother clean the room. (Force)
私は妹に私のパソコンを使わせました。
watashi wa imouto ni watashi no pasokon o tsukawasemashita.
I let my younger sister use my computer. (Permission)
[!TIP] Think of a movie set. The speaker is the Director (は). The person performing the action is the Cast Member (に/を). The Director causes the Cast Member to act!
3. Asking for Permission: 〜せてください
When you want to ask someone for permission to do something (literally: “Please let me do…”), you combine the causative form 〜せて with ください.
This is a very polite and common way to offer to do something or ask to be excused.
今日は早く帰らせてください。
kyou wa hayaku kaerasete kudasai.
Please let me go home early today.
写真を撮らせてください。
shashin o torasete kudasai.
Please allow me to take a picture.
In extremely polite business settings, you will hear 〜せていただきます (I humbly receive the favor of you letting me do…), which is practically a staple of Japanese corporate emails. Example: 休ませていただきます - “I will (receive the favor of you letting me) take a day off.”
Contextual Dialogue
Let’s see how Tanaka and Suzuki use the causative form in the workplace.
鈴木さん、今日も忙しそうですね。
Suzuki-san, kyou mo isogashisou desu ne.
Suzuki, you look busy today too.
ええ。課長にこの長いレポートを書かせられたんです。（This uses causative-passive! But normally: 課長が私に書かせました）
Ee. Kachou ni kono nagai repooto o kakaserareta n desu.
Yes. The section manager made me write this long report.
あ、課長が書かせたんですか。それは大変ですね。
A, kachou ga kakaseta n desu ka. Sore wa taihen desu ne.
Oh, the manager made you write it? That's tough.
しかも、今日は早く帰らせてくれません。
Shikamo, kyou wa hayaku kaerasete kuremasen.
Moreover, he won't let me go home early today.
ところで、明日の会議ですが、私に計画を説明させてください。
Tokorode, ashita no kaigi desu ga, watashi ni keikaku o setsumei sasete kudasai.
By the way, regarding tomorrow's meeting, please let me explain the plan.
わかりました。では、説明は田中さんに任せます。
Wakarimashita. Dewa, setsumei wa Tanaka-san ni makasemasu.
Understood. Then I will leave the explanation to you.
Chapter Summary
- 1Causative verbs mean 'to make' or 'to let' someone do something.
- 2Conjugation ends in せる (Group 1) or させる (Group 2 and Irregular).
- 3For intransitive verbs, mark the person doing the action with を.
- 4For transitive verbs, mark the person doing the action with に to avoid double を.
- 5Use 〜せてください to ask for permission: 'Please let me...'
Knowledge Check
Test your understanding of the Causative Form!
Quiz
What is the causative form of the Group 1 verb '読む' (yomu - to read)?