작동해
chahg-dohng-hae
jakdonghae
작동하다
To say to operate, to function, to run, to be on politely in the present tense, use 작동해요 (chahg-dohng-hae-yoh) · jakdonghaeyo. Below is the full conjugation of 작동하다 across the three tenses and three everyday speech levels.
Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →
Conjugation table
pron. = pronunciation guide · RR = Revised Romanization
Highlighted = where the stem changes
| Tense | Casual (반말) | Polite (요) | Formal (합니다) |
|---|---|---|---|
| Present | 작동해요 chahg-dohng-hae-yoh jakdonghaeyo | 작동합니다 chahg-dohng-hahm-nee-dah jakdonghamnida | |
| Past | 작동했어 chahg-dohng-hae-ssuh jakdonghaesseo | 작동했어요 chahg-dohng-hae-ssuh-yoh jakdonghaesseoyo | 작동했습니다 chahg-dohng-hae-sseum-nee-dah jakdonghaesseumnida |
| Future | 작동할 거야 chahg-dohng-hahl guh-yah jakdonghal geoya | 작동할 거예요 chahg-dohng-hahl guh-yae-yoh jakdonghal geoyeyo | 작동할 겁니다 chahg-dohng-hahl guhm-nee-dah jakdonghal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
작동하세요
chahg-dohng-hah-sae-yoh
jakdonghaseyo
Suggestion / Let's Polite (요)
작동해요
chahg-dohng-hae-yoh
jakdonghaeyo
Question Polite (요)
작동해요?
chahg-dohng-hae-yoh-?
jakdonghaeyo?
Connective "and" — (고)
작동하고
chahg-dohng-hah-goh
jakdonghago
Conditional "if" — (면)
작동하면
chahg-dohng-hah-myuhn
jakdonghamyeon
Progressive (고 있어요)
작동하고 있어요
chahg-dohng-hah-goh ee-ssuh-yoh
jakdonghago isseoyo
Want to (고 싶어요)
작동하고 싶어요
chahg-dohng-hah-goh shee-puh-yoh
jakdonghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
작동할 수 있어요
chahg-dohng-hahl soo ee-ssuh-yoh
jakdonghal su isseoyo
Because / So (아/어서)
작동해서
chahg-dohng-hae-suh
jakdonghaeseo
Noun form — (기)
작동하기
chahg-dohng-hah-gee
jakdonghagi
Noun form — (음)
작동함
chahg-dohng-hahm
jakdongham