The
present perfect tense
It is used to
refer to :
- · An action or situation which began in the past and is still current
- · An action or event whichtook place in the past, where the exact time of the event is not specified or not clear
- · An action or event which has just happened
1.verbal statement
(+) s+have/has +v3+o/c
I have taught english here for ten
years
(-)s+have/has +not/v3+o/c
i have not taught english here for ten
years
(?)have/has +s+v3+o/c?
Have you taught english here for ten
years?
2.Nominal
statement
(+) s +have/has +been+c
She has been in bali since 2009
(-) s+have/has +not+been+c
She has not been in bali since 2009
(?)have/has+ s+been+c?
Has she been in bali since 2009
We use the present perfect tense
1. --To talk about life experiences
Examples:
John has traveled all over the world
I’ve never stayed overnight in a
hospital
2. -.To talk about change over a period of
time,contrasting the past with the present
Examples:
They have made the exams more difficult
The climate has got warmer
3. -To talk about achievements
Examples:
Man has walked on the moon
Scientists have identified all the genes in human DNA
4. -To talk about mulitiple actions
repeated at different times.
Examples:
we’ve
won six matches this season
I’ve
seen this fillm three times
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