Verbseoul.
descriptive
거세다geosedato be rough

To say to be rough politely in the present tense, use 거세요 (guh-sae-yoh). Below is the full conjugation of 거세다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
거세
guh-sae
거세요
guh-sae-yoh
거셉니다
guh-saem-nee-dah
Past
거셌어
guh-sae-ssuh
거셌어요
guh-sae-ssuh-yoh
거셌습니다
guh-sae-sseum-nee-dah
Future
거셀 거야
guh-sael- -guh-yah
거셀 거예요
guh-sael- -guh-yae-yoh
거셀 겁니다
guh-sael- -guhm-nee-dah

Other useful forms

Command Polite (세요)
거세세요
guh-sae-sae-yoh
Suggestion / Let's Polite (요)
거세요
guh-sae-yoh
Question Polite (요)
거세요?
guh-sae-yoh-?
Connective “and” — (고)
거세고
guh-sae-goh
Conditional “if” — (면)
거세면
guh-sae-myuhn
Noun form — (기)
거셈
guh-saem