Questions & Answers about i chinguga gwiyeowoyo.
In Korean, -가 marks the grammatical subject—what or who performs the action or possesses the property—while -는 marks the topic—what you’re talking about.
- 이 친구가 귀여워요 with -가 focuses on “this friend” as the one who is cute (e.g. among others, this one stands out).
- 이 친구는 귀여워요 with -는 would mean “As for this friend, (he/she) is cute,” often implying contrast or change of subject in the conversation.
The ending -요 is the polite informal declarative ending. It:
- Makes your statement polite enough for strangers or casual acquaintances.
- Is warmer and more conversational than the formal -습니다 ending.
- Is more polite than the plain ending (귀여워), which you’d use with very close friends or younger people.