Introduction to the Causative Form
The causative form in Japanese is used to express that someone makes or lets another person do something. It can indicate permission, cause, or instruction. For example, "I make my younger brother study" or "The teacher lets the students speak."
In English, we often use "make," "let," or "have" to express causation, and Japanese has a specific grammatical form to convey this meaning.
How to Form the Causative
The causative form is created differently depending on the verb group.
| Verb Group | Causative Form Ending | Example |
|---|---|---|
| Group 1 (u-verbs) | Change u to a + seru | ๆธใ (kaku) โ ๆธใใใ (kakaseru) |
| Group 2 (ru-verbs) | Replace ใ with ใใใ | ้ฃในใ (taberu) โ ้ฃในใใใ (tabesaseru) |
| Irregular verbs | ใใ โ ใใใ, ๆฅใ โ ๆฅใใใ | ใใ (suru) โ ใใใ (saseru) |
ๅ ็ใฏๅญฆ็ใซๆผขๅญใๆธใใใพใใใ
Sensei wa gakusei ni kanji o kakasemashita.
The teacher made the students write kanji.
ๆฏใฏๅญไพใซ้่ใ้ฃในใใใพใใ
Haha wa kodomo ni yasai o tabesasemasu.
The mother lets/makes the child eat vegetables.
Usage of the Causative
The causative form can express different nuances:
- Making someone do something: expressing force or obligation.
- Letting someone do something: granting permission.
- Allowing or causing something to happen: indirect causation.
Context and particles used with the causative verb often clarify whether it means "make" or "let."
็ถใฏ็งใซ่ปใ้่ปขใใใใ
Chichi wa watashi ni kuruma o untensaseta.
My father made me drive the car.
ๅ ็ใฏๅญฆ็ใซ่ณชๅใใใใ
Sensei wa gakusei ni shitsumon saseta.
The teacher let the students ask questions.
The Causative-Passive Form
The causative-passive form combines the causative and passive forms and is used when someone is forced or made to do something unwillingly.
It is often translated as "to be made to do" or "to be forced to do."
To form the causative-passive, conjugate the causative verb into the passive form.
ๅฝผใฏๅ ็ใซๅฎฟ้กใใใใใใใ
Kare wa sensei ni shukudai o saserareta.
He was made to do homework by the teacher.
ๅญไพใฏๆฏใซ้่ใ้ฃในใใใใใใ
Kodomo wa haha ni yasai o tabesaserareta.
The child was forced to eat vegetables by the mother.
Polite Form of the Causative
The causative form can be conjugated into polite speech by adding ใพใ after the causative stem.
For example, ๆธใใใ in polite form is ๆธใใใพใ.
| Plain Causative | Polite Causative |
|---|---|
| ๆธใใใ (kakaseru) | ๆธใใใพใ (kakasemasu) |
| ้ฃในใใใ (tabesaseru) | ้ฃในใใใพใ (tabesasemasu) |
ๅ ็ใฏๅญฆ็ใซไฝๆใๆธใใใพใใ
Sensei wa gakusei ni sakubun o kakasemasu.
The teacher makes the students write essays.
Common Verbs in the Causative Form
Here are some frequently used verbs and their causative forms:
| Verb (Dictionary Form) | Causative Form | Meaning |
|---|---|---|
| ่ฉฑใ (hanasu) | ่ฉฑใใใ (hanasaseru) | to make/let speak |
| ่กใ (iku) | ่กใใใ (ikasemasu) | to make/let go |
| ้ฃฒใ (nomu) | ้ฃฒใพใใ (nomaseru) | to make/let drink |
Practice Examples
Try reading and understanding these sentences using the causative form:
ๅ ็ใฏ็ๅพใซ่ฑ่ชใ่ฉฑใใใพใใ
Sensei wa seito ni eigo o hanasasemasu.
The teacher makes the students speak English.
ๆฏใฏๅญไพใซใใขใใๅผพใใใพใใใ
Haha wa kodomo ni piano o hikasemashita.
The mother made the child play the piano.
ไธๅธใฏ้จไธใซๅ ฑๅๆธใๆธใใใใ
Jลshi wa buka ni hลkokusho o kakaseta.
The boss made the subordinate write the report.
Tips for Remembering Rules
Here are some useful tips to help you master the causative form:
- Remember the vowel changes for Group 1 verbs: change the final -u sound to -a before adding ใใ.
- Group 2 verbs simply replace ใ with ใใใ.
- Irregular verbs have unique forms: ใใ โ ใใใ, ๆฅใ โ ๆฅใใใ.
- Pay attention to particles: ใซ often marks the person who is made to do the action.
- Practice conjugating verbs in different tenses and politeness levels to become comfortable.
With consistent practice, the causative form will become a natural part of your Japanese expression toolkit.