The document describes the communicative functions and grammar structure of the present perfect tense. It explains that the present perfect tense is used to describe events that began in the past and continue to the present or have relevance to the present. It provides examples of the present perfect tense structure using auxiliary verbs like "have" and past participles. It also discusses time expressions that can be used with the present perfect tense to specify durations.

2. Communicative function
 A. It describes a state, event or habit that started in the
past, and continues to the present and may continue into
the future. For example: I have lived in this house for six
years.
 B. It describes an event which was completed sometime in
the past, but which has some significance to the present.
For example:I’m not hungry just now. I’ve just eaten.
 C. It describes an EXPERIENCE you had in the past which
you remember clearly. For example: I have done a bungee
jump.
 D. We use the present perfect form to check that
something has been done or completed. For example:
Have you finished the washing up yet?

3. Grammar structure
PAST PARTICIPLE COMPLEMENT
PRONOUN AUXILIARY VERB
I/ You/ We/ You / They + HAVE + EATEN + A SANDWICH
I/ You/ We/ You / They + HAVE NOT + EATEN + A SANDWICH
HAVE + I/ You/ We/ You / They + EATEN + A SANDWICH?
HE/ SHE/ IT + HAS + EATEN + A SANDWICH
HE/ SHE/ IT + HAS NOT + EATEN + A SANDWICH
HAS + HE/ SHE/ IT + EATEN + A SANDWICH

4. CONTRACTION
 I ‘VE
 YOU ‘VE
 WE ‘VE
 YOU‘VE
 THEY ‘VE
 HE’S
 SHE’S
 IT’S

5. TIME EXPRESSIONS
 When we use the Present Perfect it means that something has
happened at some point in our lives before now. Remember,
the exact time the action happened is not important.
 Sometimes, we want to limit the time we are looking in for an
experience. We can do this with expressions such as: in the
last week, in the last year, this week, this month, so far, up to
now, etc.
EXAMPLES:
 Have you been to Mexico in the last year?
 I have seen that movie six times in the last month.
 They have had three tests in the last week.
 She graduated from university less than three years ago.
She has worked for three different companies so far.
 My car has broken down three times this week.

6. TIME EXPRESSIONS
 USE 2 Duration From the Past Until Now (Non-Continuous
Verbs)
 With Non-Continuous Verbs and non-continuous uses of Mixed
Verbs, we use the Present Perfect to show that something started
in the past and has continued up until now. "For five minutes,"
"for two weeks," and "since Tuesday" are all durations which can
be used with the Present Perfect.
Examples:
 I have had a cold for two weeks.
 She has been in England for six months.
 Mary has loved chocolate since she was a little girl.
 Although the above use of Present Perfect is normally limited to
Non-Continuous Verbs and non-continuous uses of Mixed
Verbs, the words "live," "work," "teach," and "study" are
sometimes used in this way even though they are NOT Non-
Continuous Verbs.

7. TIME EXPRESSIONS
 ADVERB PLACEMENT
The examples below show the placement for grammar adverbs
such as: always, only, never, ever, still, just, etc.
Examples:
 You have only seen that movie one time.
 Have you only seen that movie one time?
 ACTIVE / PASSIVE
 Examples:
 Many tourists have visited that castle. ACTIVE
 That castle has been visited by many tourists. PASSIVE

8. TIME EXPRESSIONS
 NOTICE
 "Last year" and "in the last year" are very different in
meaning. "Last year" means the year before now, and it is
considered a specific time which requires simple past. "In
the last year" means from 365 days ago until now. It is not
considered a specific time, so it requires Present Perfect.
 Examples:
 I went to Mexico last year.
I WENT TO MEXICO IN THE CALENDAR YEAR BEFORE THIS ONE.
 I have been to Mexico in the last year.
I HAVE BEEN TO MEXICO AT LEAST ONCE AT SOME POINT
BETWEEN 365 DAYS AGO AND NOW.

9. PRONUNCIATION
http://www.youtube.com/watch?v=zh_DM7qJGWo&fea
ture=fvwrel

10. TO SEE MORE
 http://www.impact-
english.com/members/Grammar_Explanations/Maps/Prese
ntPerfect-Map.htm

11. EXERCISE
 http://www.monash.edu.au/lls/llonline/grammar/ten
se/2.1.xml
 http://genkienglish.net/haveyouever.htm
 and if you have time share your experience on
http://www.voxopop.com/group/3f85988b-bad3-4ee2-
a95e-4220762e872f

12. BIBLIOGRAPHY
 INFO
 www.englishforums.com/.../PresentPerfectConfusing.../post.htmwww.englishpage.com › Verb Tense
Tutorial
 http://www.youtube.com/watch?v=zh_DM7qJGWo&feature=fvwrel
 http://www.impact-english.com/members/Grammar_Explanations/Maps/PresentPerfect-Map.htm
 http://www.monash.edu.au/lls/llonline/grammar/tense/2.1.xml
 http://www.voxopop.com/group/3f85988b-bad3-4ee2-a95e-4220762e872f
 IMAGES
 esl.about.com
 espocnhol.blogspot.com
 escuelatic.com
 bibliotecadeinvestigaciones.wordpress.com
 commfiles.com
 eldropbox.com
 saberesysabores.com.ar
 es.dreamstime.com
 chistesdiarios.wordpress.com
 lahierbaroja.wordpress.com
 d-salud.blogspot.com
 tadega.net
 mamenenglish.blogspot.com
 wausaukeespanish.pbworks.com
 blogs.elcomercio.pe
 effbartontraining.com
 unibague.edu.co