Present Perfect
He has just fixed his bicycle. Has she left for London yet? We have known each other for ages.
Present Perfect Continuous
Have you been reading this book since afternoon ? I have been driving for two hours. They have been writing a test for an hour.
Present Perfect
He has just fixed his bicycle. Has she left for London yet? We have known each other for ages.
Present Perfect Continuous
Have you been reading this book since afternoon ? I have been driving for two hours. They have been writing a test for an hour.