FOR or SINCE for = a duration of time ex: I’ve been waiting for half an hour since = a point in time ex: I’ve been waiting since six o’clock Sheila is exhausted! She’s been singing non-stop three hours for She’s been working in the same company _ eleven years for since They’ve been married _ last Spring They’ve had their dogs 2001 since She’s tired because she’s been driving this morning since They’ve been on strike Monday since He’s been sea-sick _ he camesince on board sinceI was a child, I’ve loved reading books Ever Have you been to Paris _ last year? since The manager has been sitting at his desk _ early this morning since The manager has been working _ two hours on the for new contract She’s tired because she’s been driving several hours for She’s been working in the same company _ she left school since for They’ve had their dogs a long time since My son has been skiing he was three years old They’ve been on strike a week.for for now He’s been sea-sick _ two hours She’s been reading to her son half an hour for They haven’t been back to Paris _ years for Sheila has been a professional singer _ she left since school since I haven’t been skiing _ last winter My son has been skiing two hours for for They’ve been married _ seven years sincechild I’ve kept a diary I was a little [...]... desk _ early this morning since The manager has been working _ two hours on the for new contract She’s tired because she’s been driving several hours for She’s been working in the same company _ she left school since for They’ve had their dogs a long time since My son has been skiing he was three years old They’ve been on strike a week .for for now He’s been sea-sick... been sea-sick _ two hours She’s been reading to her son half an hour for They haven’t been back to Paris _ years for Sheila has been a professional singer _ she left since school since I haven’t been skiing _ last winter My son has been skiing two hours for for They’ve been married _ seven years sincechild I’ve kept a diary I was a little ... singer _ she left since school since I haven’t been skiing _ last winter My son has been skiing two hours for for They’ve been married _ seven years sincechild I’ve kept a... tired because she’s been driving this morning since They’ve been on strike Monday since He’s been sea-sick _ he camesince on board sinceI was a child, I’ve loved reading books Ever... she’s been driving several hours for She’s been working in the same company _ she left school since for They’ve had their dogs a long time since My son has been skiing he was