By learning to use the structure -(으/느)ㄴ 이상 correctly, you will easily be able to say things such as “since I am already here, I should help”, “now that I’m at work, I need to work”, or even “Unless it’s something important, I can’t meet today.” There are a couple ways to conjugate this structure in order to say what you want, so be sure to check out this lesson to learn exactly how and when you can use -(으/느)ㄴ 이상.