How to Say ‘Since’ in Korean by Using Verbs -은/ㄴ 지?

Verbs-은/ㄴ 지 indicates how much time has passed since some situation or action occurred and thus it ‘since’ in English.

It can be expressed in various ways, including -(으) ㄴ 지 ~ 되다，-(으) ㄴ 지 ~ 넘다, and -(으) ㄴ 지 ~ 안 되다. When the verb stem ends in a vowel or ㄹ， -ㄴ 지 is used, and when it ends in a consonant, -은 지 is used.

Example:

저는 한국에 온 지 2년이 되었습니다. It’s been two years since I came to Korea.

컴퓨터 게임을 한지 5시간이 넘었어요. It’s been five hours since you started playing computer games.