1.- We form the Present Perfect Continuous like this:
Positive
Negative
Question
Have I/you/we/they been cooking?
Has She/he/it been cooking?
2.- We use the Present Perfect Continuous for an action or situation that began
in the past continues until now:
You're late! I've been waiting for you.
We often use for and since Present Perfect Continuous. We use for a period of
time, and since with a point in time:
I've been waiting for you for two hours
I've been waiting for you since six o' clock
3.- Here are some more examples:
Julia has been talking on the phone for an hour
(= She started talking on the phone an hour ago and she is still talking.)
You've been sitting there since one o' clock
( = You started sitting there at one o' clock and you are still sitting there.)
4.- We use the Present Perfect Continuous for an actions that are done many times
in a period of time from the past until now:
She's been having driving lessons for a couple of months.
(= she started a couple of months ago; she is still having lessons.)
I've been playing tennis since I was a small child.
5.- We can use How long ...? with the Present Perfect Continuous:
How long have been living here?
I living here for three years.
Positive
Full Form and Short Form
I/you/we/ they have or 've
been cooking.
She/he/it Has or 's
been cooking.
Negative
Full Form and Short Form
I/you/we/they Have not or haven't
been cooking.
She/he/it Has not or hasn't
been cooking
Question
Have I/you/we/they been cooking?
Has She/he/it been cooking?
2.- We use the Present Perfect Continuous for an action or situation that began
in the past continues until now:
You're late! I've been waiting for you.
We often use for and since Present Perfect Continuous. We use for a period of
time, and since with a point in time:
I've been waiting for you for two hours
I've been waiting for you since six o' clock
3.- Here are some more examples:
Julia has been talking on the phone for an hour
(= She started talking on the phone an hour ago and she is still talking.)
You've been sitting there since one o' clock
( = You started sitting there at one o' clock and you are still sitting there.)
4.- We use the Present Perfect Continuous for an actions that are done many times
in a period of time from the past until now:
She's been having driving lessons for a couple of months.
(= she started a couple of months ago; she is still having lessons.)
I've been playing tennis since I was a small child.
5.- We can use How long ...? with the Present Perfect Continuous:
How long have been living here?
I living here for three years.
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