어떤 사람이든, ~하는 사람은 누구나
Any person who; the person or people who.
예문:
"Whoever finishes the race first will receive a gold medal."
"You can invite whoever you want to the dinner party."
누가 ~하더라도, 누구일지라도 관계없이
No matter who; regardless of which person.
예문:
"Whoever calls, tell them I am currently unavailable."
"I will find the truth, whoever tries to stop me."
도대체 누가, 대체 누구인지 강조할 때 사용
Used for emphasis instead of 'who' in questions to express surprise or confusion.
예문:
"Whoever told you such a ridiculous story?"
"Whoever could be ringing the doorbell at this hour?"