progressive tense has several
uses. One is to show an action that began
in the past
and that is still continuing now. When the
progressive is used in this way, the
length of the continuing activity
is emphasized; this
usage also suggests that the action has
no interruption from its beginning until
The "time words" for and since are common with
this use of
the present perfect progressive. Another
use of the present perfect progressive
since, or any other time expression that
a specific time or period of time)
suggests that an
activity was completed in the very
Some verbs normally aren't
in progressive tenses
because their meanings describe a
state, not an
verbs are normally used in simple
perfect tense, not present
not this: I've been appreciating what you did.
this: I've appreciated what you did.
this: That house has been belonging to the
Smith family for six generations.
but this: That house has belonged to the Smith
this: He's been having a headache for five
but this: He's had a headache for five hours.
this: They've been owing us money for a
but this: They've owed us money for a long time.
this: She's been loving to read since she
was a child.
but this: She's loved to read since she was a child.
this: They've been understanding the problem
for a long time.
but this: They've understood the problem
for a long
Some of the above verbs (the
ones with *) have
one meaning, however,
and at least one
of those meanings
can be used in continuous
including the present perfect progressive.