For & Since
For - is used with a period of time; length of time
For is uesd for all tenses.
- for 1 day
- for 3 hours
- for 10 months
- for 30 minutes
- for 2 years
- for 9 years
- for many years
- I live in New York for 10 years.
- We went to the local school for many years.
- My husband has been working in the city for over 5 year.
- I was in the hospital for a few day.
Since - a certain point in time; a specific time
Since is used with the "perfect" tenses.
- since last month
- since since the 1990's.
- since Friday
- since 2001
- since I moved to New York
- since my sister was sick
- We have been working here since 2010.
- They have not been living here since the 1990's.
- How long is it since you got moved to Europe.
- We have been waiting here since 10am.