I hadn't been to this town before. ...I hadn't prepared for the examI had made it wrong. ...it hadn't been cooked well...I had gone to bed lateI hadn't arrived at the airport in timeI had sold the previous oneI had caught coldI had lost it somewhere. ...somebody had deleted itit had been broken. ...we hadn't seen each other for a long time. ...my friend had recommended itI had had a headache. ...I had been nervous as I had failed the exam.
