3. Themes First Unit
Topic one
Present
perfect for
experience
Topic two
Present
perfect “with
for and since”
4. Present Perfect “with for
and since”
For
We can use the present perfect
with for and a period of time.
For example: five minutes, two
weeks, six years
Since
We can use the present perfect
with since and a date, day, time
or event. For example: 9 o'clock,
1st January, Monday
5. Examples
Since
• I have been here since 9 o'clock.
• John hasn't called since February.
• I have known María since 2005
For
• I have been here for twenty minutes.
• John hasn't called for six months.
• I have known María for 5 years
