This is the 3849th most frequent Korean word.
아플
"아플" means "will be painful" or "will hurt," derived from the verb "아프다" (to be painful/sick) in its future or descriptive form.
In this sentence, '아플' is derived from the verb '아프다', which means 'to feel pain' or 'to be sick'. Here, it is used as a descriptive adjective in its modifying form to describe the state of being sick or feeling pain.
그는 독감에 걸려서 너무 아플 것 같아요.
He seems to be very sick because he caught the flu.
Here, '아플' is used in the phrase '아플 때', combining '아플', the adjective form of '아프다', with '때', meaning 'time', to express 'the time when one feels sick'.
아플 때는 충분히 쉬는 것이 중요합니다.
When you feel sick, it's important to rest enough.
In this example, '아플' is used to describe the expected state of pain in the context of past assumption or realization, combined with '줄은 몰랐다', meaning 'did not know'.