Verbseoul.
하다 verb (adj)
길하다gilhadato be auspicious

To say to be auspicious politely in the present tense, use 길해요 (geel-hae-yoh). Below is the full conjugation of 길하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
길해
geel-hae
길해요
geel-hae-yoh
길합니다
geel-hahm-nee-dah
Past
길했어
geel-hae-ssuh
길했어요
geel-hae-ssuh-yoh
길했습니다
geel-hae-sseum-nee-dah
Future
길할 거야
geel-hahl- -guh-yah
길할 거예요
geel-hahl- -guh-yae-yoh
길할 겁니다
geel-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
길하세요
geel-hah-sae-yoh
Suggestion / Let's Polite (요)
길해요
geel-hae-yoh
Question Polite (요)
길해요?
geel-hae-yoh-?
Connective “and” — (고)
길하고
geel-hah-goh
Conditional “if” — (면)
길하면
geel-hah-myuhn
Noun form — (기)
길함
geel-hahm