Please enable JavaScript.
Coggle requires JavaScript to display documents.
We can use for and since for: quantity of time since: specific time -…
We can use
for
and
since
for:
quantity
of time
since:
specific
time
Present Perfect Continuous
we use it for an
action that began
in the
past
and still
continuous
in the
present
Negative
:
Subject
+ have
n´t
/has
n´t
+
been
+
ing
Affirmative
:
Subject
+
have
/
has
+
been
+
ing
I
You
We
They
have
been
swimm
ing
for
40 minutes.
since
10 a.m.
He
She
It
has
been
swimm
ing
for
40 minutes.
since
10 a.m.
Questions
:
Have / Has
+
subject
+
been
+
ing
Have you been
read
ing
the brochure?
To find out the length of time an action has been happening.
How long
+
have/has
+
subject
+
been
+
ing
We answer with
for
or
since