I've been working on this assignment for 3 days now!, I haven't been going to my doctor's appointments for a while. , Have you been paying your rent consistently? , They've been trying to contact him for six months. , He's been cooking for his family since she broke her arm. , She hasn't been keeping up with her course work. , How long have you been dating?, I've been studying for ten years and I still haven't obtained my doctorate. , I've been working as a teacher for the past 12 years., He's been driving for 16 hours since our last stop. ,

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