I’ve been working on the railroad (我曾在铁路上工作) I've been working on the railroad I've been working on the railroad; I've Been Working on the Railroad(我一直工作在铁路) I`ve been working on the railroad; Irve gbeen working on the railroad Irve gbeen working on the railroad; I've Been Working On The Railroad在铁路旁 I've Been Working On The Railroad在铁路旁; 22.I've been working on the railroad