Verbseoul.
descriptive

감사합니다 conjugation (gamsahapnida, formal polite form of 감사하다 (to be thankful))

To say formal polite form of 감사하다 (to be thankful) politely in the present tense, use 감사합녀요 (gahm-sah-hahm-nyuh-yoh) · gamsahamnyeoyo. Below is the full conjugation of 감사합니다 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
감사합녀
gahm-sah-hahm-nyuh
gamsahamnyeo
감사합녀요
gahm-sah-hahm-nyuh-yoh
gamsahamnyeoyo
감사합닙니다
gahm-sah-hahm-neem-nee-dah
gamsahamnimnida
Past
감사합녔어
gahm-sah-hahm-nyuh-ssuh
gamsahamnyeosseo
감사합녔어요
gahm-sah-hahm-nyuh-ssuh-yoh
gamsahamnyeosseoyo
감사합녔습니다
gahm-sah-hahm-nyuh-sseum-nee-dah
gamsahamnyeosseumnida
Future
감사합닐 거야
gahm-sah-hahm-neel guh-yah
gamsahamnil geoya
감사합닐 거예요
gahm-sah-hahm-neel guh-yae-yoh
gamsahamnil geoyeyo
감사합닐 겁니다
gahm-sah-hahm-neel guhm-nee-dah
gamsahamnil geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
감사합니세요
gahm-sah-hahm-nee-sae-yoh
gamsahamniseyo
Suggestion / Let's Polite (요)
감사합녀요
gahm-sah-hahm-nyuh-yoh
gamsahamnyeoyo
Question Polite (요)
감사합녀요?
gahm-sah-hahm-nyuh-yoh-?
gamsahamnyeoyo?
Connective "and" — (고)
감사합니고
gahm-sah-hahm-nee-goh
gamsahamnigo
Conditional "if" — (면)
감사합니면
gahm-sah-hahm-nee-myuhn
gamsahamnimyeon
Progressive (고 있어요)
감사합니고 있어요
gahm-sah-hahm-nee-goh ee-ssuh-yoh
gamsahamnigo isseoyo
Want to (고 싶어요)
감사합니고 싶어요
gahm-sah-hahm-nee-goh shee-puh-yoh
gamsahamnigo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
감사합닐 수 있어요
gahm-sah-hahm-neel soo ee-ssuh-yoh
gamsahamnil su isseoyo
Because / So (아/어서)
감사합녀서
gahm-sah-hahm-nyuh-suh
gamsahamnyeoseo
Noun form — (기)
감사합니기
gahm-sah-hahm-nee-gee
gamsahamnigi
Noun form — (음)
감사합님
gahm-sah-hahm-neem
gamsahamnim