Language/English/Grammar/Since-and-For
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Here is a quick article to help you make the difference between Since and For
Since and for both relate to when events happen.
Since
Use since to indicate the beginning of a time period until the present. Since can only be used with the perfect tenses.
- I have known him since September.
- Amanda hasn’t been there since she was 20
For
Use for when you’re talking about how long something happens. For can be used with all tenses.
- I have known him for 2 months.
- Amanda hasn’t been there for 10 years.