Verbseoul.
regular
화내다hwanaedato be/get angry/mad, to lose one's temper

To say to be/get angry/mad, to lose one's temper politely in the present tense, use 화내요 (hwah-nae-yoh). Below is the full conjugation of 화내다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
화내
hwah-nae
화내요
hwah-nae-yoh
화냅니다
hwah-naem-nee-dah
Past
화냈어
hwah-nae-ssuh
화냈어요
hwah-nae-ssuh-yoh
화냈습니다
hwah-nae-sseum-nee-dah
Future
화낼 거야
hwah-nael- -guh-yah
화낼 거예요
hwah-nael- -guh-yae-yoh
화낼 겁니다
hwah-nael- -guhm-nee-dah

Other useful forms

Command Polite (세요)
화내세요
hwah-nae-sae-yoh
Suggestion / Let's Polite (요)
화내요
hwah-nae-yoh
Question Polite (요)
화내요?
hwah-nae-yoh-?
Connective “and” — (고)
화내고
hwah-nae-goh
Conditional “if” — (면)
화내면
hwah-nae-myuhn
Noun form — (기)
화냄
hwah-naem