-을 뿐이다

V/Adj/이다, 아니다 + ㄹ/을 뿐이다 This indicates that there’s no other possibility than the current situation. (nothing but~, just~)

제가 스파이라고요? 저는 그냥 학생일 뿐입니다.

Me, a spy? I'm just a student, nothing more.

언니 옷을 버려서 미안하지만 나는 청소를 하려고 했을 뿐이야.

I'm sorry for throwing away your clothes, sister, but I was just trying to clean up.

• ‘-뿐’ is also a marker, so it can come right after a noun.

나한테는 너뿐이야.

I have only you.

(It's similar in meaning to -만(only), but what's different is that '-뿐' is always used with the verb '-이다'.)

• You can replace '뿐' with '따름'.

학생일 따름입니다.

청소를 하려고 했을 따름이야.

• 뿐만 아니라: not only A, but B ~

저는 영어뿐만 아니라 일본어도 공부해요.

I study not only English but also Japanese.

• Noun

• V/Adj, 이다/아니다, -었-/-겠-