The Difference Between Since and For

One of the common problems that English language learners face is how to use prepositions of time. Two of the most common prepositions for time are for and since, so 

Difference between since and for

English learners often have difficulties with these two letters. Not everyone knows the difference between since and for, so the answer is in this easy lesson:

 

1. Use of "since"

Use "since" for a point in time (start time), examples:

• Since 1996.
  
• He has been playing tennis since four o'clock.

2. Use of "for"

Use "for" for a period of time (how long something lasts), examples:

• For three hours.
  
• He has been playing tennis for two hours.
  

 

See: The Difference Between There is and There are

 

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References

english wikipedia - oxford languages and google - dictionary.cambridge