"In good relationship?"

  1. to be in good relationship ( with … )
  2. to be in a good relationship ( with … )
  3. to have a good relationship ( with … )

Are there any differences between the above three sentences? Alex advised me to use the first one, but I am afraid I could not understand the point.

“The Bush family was said to have been in good relationship with the Bin Laden family in Saudi Arabia.”

  1. is not normal usage
  2. refers to a boy girl relationship
  3. is the way to describe a good relationship of a general relationship

I meant of a general nature

Thank you for your explanation, Steve.

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