I have been digging the garden since morning
my father has been working for three hours
I have been writing thus article for about an hour and a half.
my sister and have been cleaning our house since morning
your hair are wet. have you been swimming?
children, your shoes are dirty. have you been playing in the yard?
I've been watching this film for about an hour
my mother has been doing her job for two hours.
the washing machine has been washing the clothes for two hours
I've been writing a script for several days
our family has been working in the garden since 11 o'clock
my friend has already been talking on the phone for about twenty minutes
my little brother has been learning the poem for two hours
my granny has been knitting a scarf for me for a week
my cat has already been playing for ten minutes