Small sentence study #1 Can someone please explain the difference between: [It is heartbreaking] 1)가슴 아픈일이야 2)가슴 아픈이야 I have heard native speakers say it as 1) but when I try to write it I am not sure if I need to add "일". In fact I'm not so sure about the usage of "일"in a sentence, I've picked it up from listening. Also if someone can suggest a better way of saying that it would be great! Thank you in advance.