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Anonymous Posted 15 years ago
Grammar

Asking using to know for

I would like to know how fo formulate the following question:

How long do you know him for? Since when do you know him?

Since when do you know him for?

Thank you
  

Top answer

Hi, Q - How long have you known him ( for )? ) A - I have known him for five years. Clive

— Clive

  • Hi, Q - How long have you known him ( for )?
  • ) A - I have known him for five years.
  • Clive
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1 Answers
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Hi,

Q - How long have you known him ( for )? (The 'for' is optional.)


A - I have known him for five years.

Clive
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