Question

김밥 두 줄 밖에 못 먹었어요 The 'as many as' meaning of -(이)나 is opposite to the meaning of 밖에. The latter indicates that the quantity is less than desired, expected or required. The speaker defines whether the given quantity is seen as a positive or a negative outcome. The choice between -(이)나 and 밖에 depends on the speaker's perspective.

Accepted Answer

I could ate only two kimbaps. (negative)

Front	김밥 두 줄 밖에 못 먹었어요
Back	I could ate only two kimbaps. (negative)
Notes	The 'as many as' meaning of -(이)나 is opposite to the meaning of 밖에. The latter indicates that the quantity is less than desired, expected or required. The speaker defines whether the given quantity is seen as a positive or a negative outcome. The choice between -(이)나 and 밖에 depends on the speaker's perspective.

밖에 Meaning 이)나 Quantity 김밥 두 줄 못