past, present, future continuous
During years of careful study, scientists _______ (expose) some of the ordinary looking rocks to ultraviolet light.
past continuous
were exposing
How long _____________ (be) a docotor?
present perfect
have you been
How many times/ told/ you?
How many times have I told you?
tell
told
I've been liking sports ever since I was a child.
I've liked sports ever since I was a child.
He ___________ (call) several times today to figure out the issue.
future continuous
will be calling
Since 2000 the popularity of Apple phones __________ (grew) tremendously.
present perfect
has grown
She/ hang up/ all the pictures/ yet?
Has she hung up all the pictures yet?
In 1997 he __________ (start) his own company.
past continuous
was starting
I'm learning Spanish, but I ______________ (not, learn) it long?
present continuous
haven't been learning
He is a basketball coach now. He __________ (work) as an accountant for 10 years.
past continuous
has been working
Did you know Sophia is an actor? She _____________ (appear) in several films.
present perfect
has appeared
How long/ she/ work/ for this company?
How long has she been working for this company?
Juan used to be a wild party guy, but that is all over now, since he _________ (got) married.
present continuous
is getting
You look tired. _____________ (you/ party) a lot recently?
present continuous
Have you been partying