Verbseoul.
ㄹ stem
달다daldato become hot

To say to become hot politely in the present tense, use 달아요 (dah-rah-yoh). Below is the full conjugation of 달다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
달아
dah-rah
달아요
dah-rah-yoh
답니다
dahm-nee-dah
Past
달았어
dah-rah-ssuh
달았어요
dah-rah-ssuh-yoh
달았습니다
dah-rah-sseum-nee-dah
Future
달 거야
dahl- -guh-yah
달 거예요
dahl- -guh-yae-yoh
달 겁니다
dahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
다세요
dah-sae-yoh
Suggestion / Let's Polite (요)
달아요
dah-rah-yoh
Question Polite (요)
달아요?
dah-rah-yoh-?
Connective “and” — (고)
달고
dahl-goh
Conditional “if” — (면)
달면
dahl-myuhn
Noun form — (기)
dahm