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I have known him for a long time vs I have known him since a long time

The phrase 'I have known him for a long time' is correct, while 'I have known him since a long time' is incorrect. The preposition 'for' is used to indicate the duration of time in English, while 'since' is used to specify a point in time when an action started.

Last updated: March 20, 2024

I have known him for a long time

This phrase is correct and commonly used in English.

This phrase is used to express that you have been acquainted with someone for an extended period.

Examples:

  • I have known him for a long time, and we are very close friends now.
  • She has been working at the company for a long time.
  • They have been living in that house for a long time.
  • We have been studying English for a long time.
  • He has been playing the guitar for a long time.
  • Dec 30, 2005 ... Better to say 'I have known him for a long time' Or 'I have known him for years' Or ' We first met a long time ago' (although this does not ...
  • 22 hours ago ... I have known him for a long time. 8. He has been ill since last week. 9. We haven' t seen Samuel for several months. 10. They have lived here ...
  • Dec 15, 2015 ... “Can I just stay out of this debate?” Brady said with a laugh. “Donald is a good friend of mine. I have known him for a long time. I support all my ...
  • Feb 8, 2016 ... I have known him for a long time. I support all my friends. That is what I have to say. He's a good friend of mine. He's always been so supportive ...

Alternatives:

  • I have known him for ages.
  • I have known him for years.
  • I have known him for a while.
  • I have known him for a considerable amount of time.
  • I have known him for a lengthy period.

I have known him since a long time

This phrase is incorrect in English. 'Since' is used to refer to a specific point in time, not a duration of time.

The correct usage of 'since' is to indicate the starting point of an action or event.
  • Jun 17, 2013 ... "The film is directed by Milan Luthria and I have known him since a long time. He used to assist (Mahesh) Bhatt sahab and my first ever song ...
  • I was trusting my director as I have known him since a long time," Tabu said. " Fortunately or unfortunately they (makers) come to me with these kind of characters ...
  • Jan 23, 2016 ... I have known him since a long time. We were together for Anna Hazare's movement, but now he has become a self-centered man. He is hungry ...
  • I have known him since a long time when he came for the first time and join the Faculty of Business and Management in May 2009, and also witnessed his way ...

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