4 6 present perfect progressive

1. 4-6 Present Perfect Progressive
Page 98

2. The PRESENT
PERFECTPROGRESSIVE
talksabouthowlongan
activityhasbeenin
progressbeforenow.
Time expressions with since and for are
often used with this sense.
Al and Ann are in their car right now.
They are driving home. It is now four
o’clock.
They have been driving since two
o’clock.
They have been driving for two hours.

3. The PRESENT
PERFECTPROGRESSIVE
questionform:
have/has + subject + been + -ing
Al and Ann are in their car right now.
They are driving home. It is now four
o’clock.
How long have they been driving?
They have been driving since two
o’clock.
They have been driving for two hours.

4. ComparethePRESENT
PERFECTandthe
PRESENTPERFECT
PROGRESSIVE:
With for or since, these two verb tenses
have the same meaning:
Al and Ann are in their car right now.
They are driving home. It is now four
o’clock.
They have been driving since two
o’clock.= They have driven since two
o’clock.
They have been driving for two hours. =

5. ComparethePRESENT
PERFECTandthe
PRESENTPERFECT
PROGRESSIVE:
BE CAREFUL! We do not use the
present tense in this kind of sentence.
INCORRECT!
**They drive since two o’clock.
**They are driving since two o’clock
**They drive for two hours.
**They are driving for two hours.

6. Rememberthatnon-
action(=stative)verbs
arenotusedinthe
progressivetenses.
BE CAREFUL! We do not use non-
action verbs in the present perfect
progressive.
Review
Section 1.6: Non-Action Verbs.
INCORRECT!
**I am knowing Yoko.
**I have been knowing Yoko for two
years.