Question

달리기를 하고 나서 마크는 다리에 쥐가 났어요 -고 나서 attaches to verb stems and marks an activity to be completely done before a subsequent action is preformed. The pattern corresponds to 'after finishing', 'upon finishing' or 'and then'. The ending -고 itself can be used to link two subsequent actions; however, the addition of 나서 stresses out that the first action has been completed.-고 나서 is similar to -(으)ㄴ 후/뒤/다음에 and does not convey any meaning of how quick or in which manner the marked action is performed.

Accepted Answer

After running, Mark got a cramp in his leg

Front	달리기를 하고 나서 마크는 다리에 쥐가 났어요
Back	After running, Mark got a cramp in his leg
Notes	-고 나서 attaches to verb stems and marks an activity to be completely done before a subsequent action is preformed. The pattern corresponds to 'after finishing', 'upon finishing' or 'and then'. The ending -고 itself can be used to link two subsequent actions; however, the addition of 나서 stresses out that the first action has been completed. -고 나서 is similar to -(으)ㄴ 후/뒤/다음에 and does not convey any meaning of how quick or in which manner the marked action is performed.

나서 고 Action Subsequent 달리기를 하고 마크는 다리에