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5.4 Present Perfect with For and Since

1. Use the present perfect with for or work at that company
since to talk about an action or
state that started in the past and 20 years ago now
continues in the present.
He’s worked at that company for 20 years.

know Jack
2008 now
I’ve known Jack since 2008.
2. Use for with an amount of time, They’ve been in that store for an hour.
such as a number of hours, days, Leo’s been sick for three days.
months, years, etc. We’ve had this car for a year.
I haven’t seen Molly for a long time.

3. Use since with a specific time in the He’s been absent since Tuesday.
past, such as a day, month, date, I haven’t eaten anything since this morning.
or time of day. She’s worked here since April.
We’ve been here since 2:00.

4. Use for or since to answer a A: how long have you lived here?
question with How long. B: For a long time./Since 2004.

4 Complete each sentence with for or since and the information in parentheses.

1. Paro has been on sale in the United States since 2009 . (2009)
2. Car manufacturers have used robots in their factories .

(a long time)

3. The university has had a robotics department . (the 1990s)

4. Nurses in Japan have supported the use of Paro . (several years)

5. Robots have performed dangerous jobs in factories .
(many years)

6. A: How long has Rita owned her car?
B: . (April)

7. Matt has studied robotics . (two years)

8. A: How long have you known Siri?

B: . (five years)

132 The PReSeNT PeRFeCT
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