When do you use past perfect tense?
describe an action is happening now
describe an action had done in the past
describe something happened before another in the past
something didn't happened yet but will happen
You are too late, the train _____.
is left
has left
had been leave
had left
George _____ finished his homework yet.
had not
was
will be
has just
He _____ not left yet.
haven't
has
have
had
I lost so much weigh because I _____ exercising.
had begun
have been
have begun
am doing
What is the form for past perfect tense?
Have+being+past participle
Had+continuous verb
Have +been+simple past verb
Had + past participle
I had already _____, so I didn't feel hungry at all.
been eating
eat
eaten
ate
I _____ already _____ asleep before 11 pm.
have / fall
had / fell
have / fallen
had / fallen
I _____ that house for eight years before the fire.
had had
had have
have
had
Linda says that she _____ to that swimming before.
had been
have gone
was going to
have been