Verbseoul.
하다 verb

한탄하다 conjugation (hantanhada, to lament, to deplore, to regret)

To say to lament, to deplore, to regret politely in the present tense, use 한탄해요 (hahn-tahn-hae-yoh) · hantanhaeyo. Below is the full conjugation of 한탄하다 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

TenseCasual (반말)Polite (요)Formal (합니다)
Present
한탄해
hahn-tahn-hae
hantanhae
한탄해요
hahn-tahn-hae-yoh
hantanhaeyo
한탄합니다
hahn-tahn-hahm-nee-dah
hantanhamnida
Past
한탄했어
hahn-tahn-hae-ssuh
hantanhaesseo
한탄했어요
hahn-tahn-hae-ssuh-yoh
hantanhaesseoyo
한탄했습니다
hahn-tahn-hae-sseum-nee-dah
hantanhaesseumnida
Future
한탄할 거야
hahn-tahn-hahl guh-yah
hantanhal geoya
한탄할 거예요
hahn-tahn-hahl guh-yae-yoh
hantanhal geoyeyo
한탄할 겁니다
hahn-tahn-hahl guhm-nee-dah
hantanhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
한탄하세요
hahn-tahn-hah-sae-yoh
hantanhaseyo
Suggestion / Let's Polite (요)
한탄해요
hahn-tahn-hae-yoh
hantanhaeyo
Question Polite (요)
한탄해요?
hahn-tahn-hae-yoh-?
hantanhaeyo?
Connective "and" — (고)
한탄하고
hahn-tahn-hah-goh
hantanhago
Conditional "if" — (면)
한탄하면
hahn-tahn-hah-myuhn
hantanhamyeon
Progressive (고 있어요)
한탄하고 있어요
hahn-tahn-hah-goh ee-ssuh-yoh
hantanhago isseoyo
Want to (고 싶어요)
한탄하고 싶어요
hahn-tahn-hah-goh shee-puh-yoh
hantanhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
한탄할 수 있어요
hahn-tahn-hahl soo ee-ssuh-yoh
hantanhal su isseoyo
Because / So (아/어서)
한탄해서
hahn-tahn-hae-suh
hantanhaeseo
Noun form — (기)
한탄하기
hahn-tahn-hah-gee
hantanhagi
Noun form — (음)
한탄함
hahn-tahn-hahm
hantanham