Verbseoul.
regular
앓다alda-2to suffer from an illness

To say to suffer from an illness politely in the present tense, use 앓아요 (ah-rah-yoh). Below is the full conjugation of 앓다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
앓아
ah-rah
앓아요
ah-rah-yoh
앓습니다
ahl-seum-nee-dah
Past
앓았어
ah-rah-ssuh
앓았어요
ah-rah-ssuh-yoh
앓았습니다
ah-rah-sseum-nee-dah
Future
앓을 거야
ah-reul- -guh-yah
앓을 거예요
ah-reul- -guh-yae-yoh
앓을 겁니다
ah-reul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
앓으세요
ah-reu-sae-yoh
Suggestion / Let's Polite (요)
앓아요
ah-rah-yoh
Question Polite (요)
앓아요?
ah-rah-yoh-?
Connective “and” — (고)
앓고
ahl-goh
Conditional “if” — (면)
앓으면
ah-reu-myuhn
Noun form — (기)
앓음
ah-reum