I usually use the plural form after "some."
Example:
I bought some books about France
But I would also say some source states that France is best toured in fall.
Is there a specific grammar rule? May I say that in the second sentence I am really thinking at a very specific source, so singular is needed?
Best Answer
Some has slightly different meanings depending on whether it is used with a singular or plural noun. When you say, "I bought some books," you mean that you bought multiple books, but not how many were purchased.
With a singular noun, some is used to talk of something whose existence is known, but whose nature or identity is not.