Causative form
A causative form, in linguistics, (a) is an expression of an agent causing or forcing a patient to perform an action or to be in a certain condition--salient cause, (b) is an expression of a patient involves in a non-volitional event that registers the changes of its state--salient effect, (c) is an expression of a grammatical modality in perfective (sequential) or subjenctive (hypothetical) or realis (non-hypothetical) state--perceptual salient. In Korean, this form is called 사동.
The Korean passive and causative conjugations pose a lot of confusing aspects and many Korean materials don't even teach this part properly. This grammar part may even be hard for some native Korean speakers. For example, 굽다 has two meanings and their conjugation forms are completely different.
- 굽다 : bend
- 굽어지다 : to become (naturally) bent : (-어지다 is always passive. in this case, 굽다 follows the regular conjugation rule)
- 굽히다 : to make something become bent , to bend something : (this -히 is causative)
- 굽혀지다 : to become bent by someone : (causative + passive)
- 굽다 : to bake
- 구워지다 : to be baked : (-어지다 is always passive. in this case, 굽다 follows the ㅂ irregular conjugation rule)
In the example above, -히 is a causative particle, but it can be either a passive particle in many other verbs.
- 먹다 : to eat
- 먹히다 : to be eaten : (this -히 is passive)
- 먹이다 : to make/let someone eat , to feed : (this -이 is causative)
In some cases, passive and causative forms are identical.
- 보다 : to see
- 보이다 : to be seen : (this -이 is passive)
- 보이다 : to make/let someone see , to show : (this -이 is causative. to avoid confusion, 보여주다 is used in most cases)
- 보여지다 : to be shown : (causative -이 + passive -어지다)
- 보여지다 : to be seen : (passive -이 + passive -어지다, this usage is wrong as it is a double passive)
There are some verbs that even most native Koreans fail to conjugate correctly.
- 잊다 : to forget
- 잊히다 : to be forgotten : (passive)
- 잊혀지다 : to be forgotten : (a double passive using both -히 and -어지다. this is wrong)
- 잊게 하다 : to make/let someone forget something : (in this case, -게 하다 is the proper causative form)
Some verbs don't allow the passive particles at all. These exceptional verbs need special passive forms.
- 죽다 : to die
- 죽이다 : to make/let someone die , to kill : (causative)
- 죽임을 당하다 : to be killed : (passive)
- 사망(死亡)하다 : to die : (Sino Korean equivalent)
- 살해(殺害)하다 : to kill : (Sino Korean equivalent)
- 살해(殺害)당하다 : to be killed : (Sino Korean equivalent)
- 살해(殺害)되다 : to be killed : (Sino Korean equivalent)
- 피살(被殺)되다 : to be killed : (Sino Korean equivalent)
Adjectives can also become causative verbs
- 낮다 : to be low
- 낮추다 : to make/let something low , to lower : (this -추 is causative)
- 낮춰지다 : to be lowered : (causative -추 + passive -어지다)
- 높다 : to be high
- 높이다 : to make/let something high : (this -이 is causative)
- 높여지다 : passive form of 높이다 : (causative -이 + passive -어지다)
Some causative forms with the -우 particle are inflected with the vowel ㅣ.
- 자다 : to sleep
- 재우다 : to make/let someone sleep : (자 + ㅣ + 우 + 다)
- 서다 : to stand
- 세우다 : to make/let something stand : (서 + ㅣ + 우 + 다)
In short, the conjugation rules for passive and causative forms follow some patterns, but vary with individual verbs. (most passive verbs take one of -이, -히, -리, -기 or -어지다. most causative verbs take one of -이, -히, -리, -기, -우 , -구, -추 or -게 하다). The four particles -이, -히, -리, -기 are particulary tricky as they can be used for both passive or causative verbs. You can't really determine whether those things are passive or causative unless you look up a Korean dictionary because those four particles are ultimately random. That's why most Korean materials for foreigners skip or overlook this grammar part. Each form of every verb should be memorized.
Forming causatives
Explaining the form with subject marker, object marker, etc.
Active verb | Causative verb | Examples |
---|---|---|
먹다 (to eat) | 먹이다 (to make/let someone eat , to feed) |
Active- 나는 김치를 먹는다.(I eat Kimchi) Causative- 나는 강아지에게 물을 먹인다.(I make my dog drink water) |
죽다 (to die) | 죽이다 (to make/let someone die , to kill) |
Active- 지진 때문에 많은 사람이 죽었다. (Many people died from the earthquake.) Causative- 그는 사람을 죽였다. (He killed a person.) |
붙다 (to stick to) | 붙이다 (to make/let something stick to) |
Active- 나는 벽에 붙는다. (I stick to the wall.) Causative- 나는 사진을 벽에 붙인다. (I make a picture stick to the wall.) |
끓다 (to boil) | 끓이다 (to make/let something boil) |
Active- 물은 100℃ 이상에서 끓는다. (Water boils in the temperature of 100℃ and over.) Causative- 나는 김치찌개를 끓인다. (I make the Kimchi-jjigae boil. / I boil the Kimchi-jjigae.) |
보다 (to see, to look, to watch) | 보이다 (to make/let someone see , to show) |
Active- 나는 영화를 보았다. (I saw a movie.) Causative- 학생이 내게 사진을 보였다. (A student showed me a photograph.) |
속다 (to be fooled, to be deceived) | 속이다 (to make/let someone be fooled) |
Active- 또다시 일기예보에게 속았다. (I am fooled by the weather forecast again.) Causative- 절대로 사람을 속이지 마라. (Never deceive a person.) |
Active verb | Causative verb | Examples |
---|---|---|
익다 | 익히다 | |
읽다 (to read) | 읽히다 | |
입다 (to wear) | 입히다 | |
앉다 (to sit) | 앉히다 | |
눕다 | 눕히다 | |
맞다 | 맞히다 |
Active verb | Causative verb | Examples |
---|---|---|
알다 | 알리다 | |
울다 | 울리다 | |
돌다 | 돌리다 | |
살다 | 살리다 | |
놀다 | 놀리다 | |
걸다 (to hang) | 걸리다 |
Active verb | Causative verb | Examples |
---|---|---|
벗다 | 벗기다 | |
신다 | 신기다 | |
웃다 | 웃기다 | |
맡다 | 맡기다 | |
감다 | 감기다 | |
씻다 | 씻기다 |
Active verb | Causative verb | Examples |
---|---|---|
깨다 | 깨우다 | |
서다 | 세우다 | |
쓰다 | 씌우다 | |
자다 | 재우다 | |
타다 | 태우다 |
Active verb | Causative verb | Examples |
---|---|---|
돋다 | 돋구다 | |
일다 | 일구다 | |
달다 | 달구다 | |
솟다 | 솟구다 |
Active verb | Causative verb | Examples |
---|---|---|
낮다 | 낮추다 | |
늦다 | 늦추다 | |
맞다 | 맞추다 | |
곧다 | 곧추다 |
Creating causative form
The causative form can also be created using: See V + 게 하다