Verbseoul.
descriptive
감사합니다gamsahapnidaformal indicative assertive of 감사하다 (gamsahada, “to be thankful”): is/

To say formal indicative assertive of 감사하다 (gamsahada, “to be thankful”): is/ politely in the present tense, use 감사합녀요 (gahm-sah-hahm-nyuh-yoh). Below is the full conjugation of 감사합니다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
감사합녀
gahm-sah-hahm-nyuh
감사합녀요
gahm-sah-hahm-nyuh-yoh
감사합닙니다
gahm-sah-hahm-neem-nee-dah
Past
감사합녔어
gahm-sah-hahm-nyuh-ssuh
감사합녔어요
gahm-sah-hahm-nyuh-ssuh-yoh
감사합녔습니다
gahm-sah-hahm-nyuh-sseum-nee-dah
Future
감사합닐 거야
gahm-sah-hahm-neel- -guh-yah
감사합닐 거예요
gahm-sah-hahm-neel- -guh-yae-yoh
감사합닐 겁니다
gahm-sah-hahm-neel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
감사합니세요
gahm-sah-hahm-nee-sae-yoh
Suggestion / Let's Polite (요)
감사합녀요
gahm-sah-hahm-nyuh-yoh
Question Polite (요)
감사합녀요?
gahm-sah-hahm-nyuh-yoh-?
Connective “and” — (고)
감사합니고
gahm-sah-hahm-nee-goh
Conditional “if” — (면)
감사합니면
gahm-sah-hahm-nee-myuhn
Noun form — (기)
감사합님
gahm-sah-hahm-neem