This form emphasize the
duration of one past event taking
Place before another past event. The
past perfect progressive form, like
The past progressive form, may show
a past event in progress before it
Is interrupted by another past
1. The boys had been
playing baseball all the morning before their mother told them to study.
(The boys were playing baseball until
their mother told them to study.)
2. I had been doing exercise
until he came.
(I was doing exercise until he came.)
3. I felt tired because I had
been running all the way.
(I was running so I felt tired.)
4. When he arrived, I had
been waiting for him for one hour.
(I was waiting for him until he
Some verbs can't put on" progressive form"; in the meanwhile, they can't
put on" past perfect progressive form" except "want" and
1. The boy was delighted
with his new bike because he had been wanting
one for a long time.
The sentence that has frequency can't use past perfect progressive.
1. He had been trying five
times to get her on the phone but had failed. (wrong)
Revise: He had been trying to get her
on the phone but he failed.
Future Perfect Progressive Tense