09-05-2009, 09:46 AM
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النشاط 7 / 665 المؤشر 41% | Grammar lesson: for versus since
Grammar lesson: for versus since For and since both express a period of time, but the between them is the difference in the time reference.
For is always followed by a number (something you can count) - for 2 weeks, for 20 minutes, for eight years…
I worked in Berlin for 6 months after graduating from university.
I've been studying English for 2 years.
Why are you so late? I've been waiting for 30 minutes!
Since this is followed by a year, noun, or phrase. It is generally used with a perfect tense.
Ed's been working in my office since January.
I 've been living in Dubai since 2004.
It's been a long time since I've seen my mother.
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