Isn't it ready yet? How long are you making it?
Isn't it ready yet? How long have you been making it?
You are still working! - Yes, I've picked strawberries all afternoon.
You are still working! - Yes, I've been picking strawberries all afternoon.
I have revised my English since 9 o’clock this morning.
I have been revising my English since 9 o’clock this morning.
Sam have worked here since 2018
Sam has been working here since 2018 / Sam has worked here since 2018
I have been wearing this watch since a long time.
I have been wearing this watch for a long time.
Mark is exhausted. He has played tennis since two hours.
Mark is exhausted. He has been playing tennis since two hours.
I have only heared from her twice since she left
I have only heard from her twice since she left
How many cigarettes have you been smoking this afternoon?
How many cigarettes have you smoked this afternoon?
My best friend has always been hating fish.
My best friend has always hated fish.