Present Perfect Continuous
Use:
actions started in the past and continue now. Usually,
the length of time or a time reference is used: since..., for....
Form: has/have been
VERBing
Examples:
They
have been
making
the same mistakes for years.
Ever since her
father died, she has been
working
on a cure.
David is
writing an article for this month's journal.
(present continuous)
Negative Form: has/have
not been VERBing
Example:
They
have not been following FDA
guidelines for a very long time.
Rules -
Ex.1 -
Ex.2 -
Ex.3 -
Ex.4 -
Rules -
Ex.5 -
Ex.6 -
Ex.7 -
Ex.8 -
Ex.9 -
Ex.10
