Have/has been -ing
Have/has been –ing is the present perfect
I/we/they/you have (= I’ve,
playing, etc.he/she/it has (= he’s, etc.)
The present continuous describes what a
person is doing.
The present perfect continuous tells how
long a person has been doing that action.
Ex. Katie is delivering mail.
She has been delivering mail for two
she has been working for the post office
The present perfect continuous talks
about an action that started in the past
and continues in the present. The action
is not yet complete. It tells how long
the action has been in progress.
He has been washing windows since
They have been waiting for the bus for
Present perfect continuous
for two hours.He
Since & For
You can use the present perfect continuous for
actions that are repeated over a period of time:
Debbie is a very good tennis player. She’s
been playing since she was eight.
Every morning they meet in the same café.
They’ve been going there for years.
For and since
For shows an amount of time.
for three hours
for ten days
Since tells when an action started
since he came to the United States