접속사 + Sentence (주어+동사) 전치사 + Noun (명사, 동명사) although = even though = though = even if = nevertheless : ~에도 불구하고 because = since = as = now that : ~때문에 while, whereas : 반면에 once : 일단 ~하면 as long as : ~하기만 한다면 unless (=if not) : ~하지 않는다면 provided (=providing) that =assuming that : if in order that : ~하기 위해 as if : 마치 ~인 것처럼 even if : 심지어 ~라고 해도 however therefore moreover, furthermore meanwhile in ..