The document discusses the present perfect continuous tense in English. It provides examples of sentences using the present perfect continuous tense with "have/has been" followed by the "-ing" form of the verb. It explains that the present perfect continuous tense is used to describe actions that started in the past and have continued up to the present. It also discusses the time expressions "since" and "for" that are commonly used with the present perfect continuous tense.

1. PRESENT PERFECT
CONTINUOUS
HAVE / HAS + BEEN + VING

2.  I started to read this book two hours ago, and
I'm still reading it.
I have been reading this
book for two hours.

4.  It started to rain yesterday morning, and it is
still raining.
It has been raining since
yesterday morning.

5.  You should take some time to relax at the
weekend.
You have been working very
hard all week.

6. Present Perfect Continuous
HAS +BEEN +
I, YOU, WE, THEY
HE, SHE, IT
HAVE

7. It has been
raining since / for
last week.

8. Time expressions used Present
Perfect Continuous
SINCE
It tells about the starting time.
• It has been snowing since
December.
• He has been sleeping since 10 PM.
• She has been working here since
2005.
FOR
It tells about the duration.
• You have been watching TV for 3
hours.
• They have been playing video game
for 2 days.
• He has been staying here for a
week.

9. Time expressions used Present
Perfect Continuous
How long:
It is used to ask about the duration or time period.
How long have you been sitting here?
How long has she been studying?
How long have they been waiting?
How long has he been working?