|
FOR |
- For is used to indicate
a period of time.
-
How long are you staying in London? I'm staying for a week.
For is often used with the Present
Perfect.
- I have been waiting at the bus stop
for 10 minutes.
- I have lived in this country for
5 years.
- For can be used with
other verb tenses :
- Present : I go on holidays
for two weeks every summer.
- Past : When I was sixteen, I stayed
in London
for two months.
- Future :While I am in the USA , I
will be in New York for
two days.
|
| SINCE |
- Since is used to refer to
the
starting point of actions or
situations.
It is generally used with the Present
Perfect.
- I have been waiting for the bus since
8 o'clock.
- I live in Tokyo. I have lived in Tokyo
since January 2010.
- I have been learning English since
the beginning of the year.
|
| AGO |
- Ago is used to say when
past events happened, going back from today towards
the past. The verb is in the Past Tense.
- I came to Tokyo two years ago.
- I arrived at the bus stop 10 minutes
ago.
- The company was founded 30 years
ago.
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