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Perfect Stranger Posted 13 years ago
Grammar

Grammar question no. 13 - how long... for?

Dear All,

Can you have a look at these questions and tell me whether it's necessary or not to add for at the end?
  1. How long did you sleep (for) ?
  2. How long have you been studying English (for) ?
  3. How long habe you been in Toronto (for) ?

Thanks in advance!
  

Top answer

For is optional in all three.

— RandomGuy

  • For is optional in all three.
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1 Answers
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For is optional in all three.
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