Verbseoul.
descriptive

엄청나다 conjugation (eomcheongnada, to be enormous, to be tremendous)

To say to be enormous, to be tremendous politely in the present tense, use 엄청나요 (uhm-chuhng-nah-yoh) · eomcheongnayo. Below is the full conjugation of 엄청나다 across the three tenses and three everyday speech levels.

Grammar note (descriptive): Descriptive verbs (형용사) function like adjectives in Korean and conjugate the same way as regular action verbs. They cannot take the progressive -고 있어요 or imperative forms. 좋다 (to be good) → 좋아요; 크다 (to be big) → 커요 (으-irregular).

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
엄청나
uhm-chuhng-nah
eomcheongna
엄청나요
uhm-chuhng-nah-yoh
eomcheongnayo
엄청납니다
uhm-chuhng-nahm-nee-dah
eomcheongnamnida
Past
엄청났어
uhm-chuhng-nah-ssuh
eomcheongnasseo
엄청났어요
uhm-chuhng-nah-ssuh-yoh
eomcheongnasseoyo
엄청났습니다
uhm-chuhng-nah-sseum-nee-dah
eomcheongnasseumnida
Future
엄청날 거야
uhm-chuhng-nahl guh-yah
eomcheongnal geoya
엄청날 거예요
uhm-chuhng-nahl guh-yae-yoh
eomcheongnal geoyeyo
엄청날 겁니다
uhm-chuhng-nahl guhm-nee-dah
eomcheongnal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
엄청나세요
uhm-chuhng-nah-sae-yoh
eomcheongnaseyo
Suggestion / Let's Polite (요)
엄청나요
uhm-chuhng-nah-yoh
eomcheongnayo
Question Polite (요)
엄청나요?
uhm-chuhng-nah-yoh-?
eomcheongnayo?
Connective "and" — (고)
엄청나고
uhm-chuhng-nah-goh
eomcheongnago
Conditional "if" — (면)
엄청나면
uhm-chuhng-nah-myuhn
eomcheongnamyeon
Progressive (고 있어요)
엄청나고 있어요
uhm-chuhng-nah-goh ee-ssuh-yoh
eomcheongnago isseoyo
Want to (고 싶어요)
엄청나고 싶어요
uhm-chuhng-nah-goh shee-puh-yoh
eomcheongnago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
엄청날 수 있어요
uhm-chuhng-nahl soo ee-ssuh-yoh
eomcheongnal su isseoyo
Because / So (아/어서)
엄청나서
uhm-chuhng-nah-suh
eomcheongnaseo
Noun form — (기)
엄청나기
uhm-chuhng-nah-gee
eomcheongnagi
Noun form — (음)
엄청남
uhm-chuhng-nahm
eomcheongnam