I _____ Cathy for 5 years. (know)
I have known Cathy for 5 years.
Miss Smith started teaching here in 2015.
Miss Smith has been teaching here since 2015. / for 6 years
Susan started studying two hours ago.
Susan has been studying for two hours.
_____ Nick _______ since 3 o'clock? (study)
Has Nick been studying since 3 o'clock?
The dog _______ in the car all day. (dance)
The dog has been dancing in the car all day.
I started doing my HW at 5 o'clock.
I have been doing my HW since 5 o'clock.
The baby _____ since 10 o'clock. (sleep)
The baby has been sleeping since 10 o'clock.
I started watching videos at four o'clock.
I have been watching videos since 4 o'clock.
She ______ always ______ funny films. (like)
She has always liked funny films.
The boys _____ basketball at the moment. (play)
The boys are playing basketball at the moment.
It started snowing yesterday morning.
It has been snowing since yesterday morning.
I _____ in the pool for 3 hours. (swim)
I have been swimming in the pool for 3 hours.
It _____ now. (rain)
It is raining now.
____ they __________ for a long time? (wait)
Have they been waiting for a long time?
Mark started cleaning his room at 2 o'clock.
Mark has been cleaning his room since 2 o'clock.
The dog _________ all morning. (not / bark)
The dog hasn't been barking all morning.
We _________ in Paris for 20 years. (not / live)
We haven't been living in Paris for 20 years.
Martha started playing the drums when she was six.
Martha has been playing the drums since she was six.
John started learning French two years ago.
John has been learning French for two years. / since 2019