Subject + Object + Verb is the most basic sentence structure in Korean. 나(I, me = S)는 음악(music = O)을 듣는다(listen = V) 고양이는(cat/cats = S) 물을(water = O) 좋아하지(like = V) 않는다.(not = Negative) But the order is not absolute. Because 'Grammartical particles' is more important than the order of sentence. I am giving you an example. 너(You)를 나(I/me)는 좋아한다.(Like) This sentence means 'I like you', not 'You like me'. In this situation, you have to interpret by 'Grammartical particles' like 은/는/이/가/를 etc. They are attached right after nouns and decide what is subject or what is object, so if you have understanding in the grammartical particles, you don't need to care about the order of sentence too much in spoken language. (I call it 'grammartical particles' but actually there is no exact word for this since it doesn't exist in English grammar. also you would get to know as your Korean skill grows up, grammartical particles can change the mood of sentence slightly.)