... "anymore" is an adverb meaning "nowadays" or "any longer", while "any more" can be either adverb plus adjective, as in "I don't want any more pie", or adjective plus noun, as in "I don't want any more."That seems right. I would add that the distinction is not just between applying the word to time and applying it to magnitude, another possibility. One ought not to write, "Spending anymore time on that would be wrong," because there "any more" is an adjective-noun pair.The difference between the two meanings is illustrated in the sentence: "I don't buy books anymore because I don't need any more books."
It seems to me (and Mr. Cunningham implies this too) that wherever "anymore" is correct, "any more" is also correct. Either of them can function as an adverb, so one can write either "I don't live there anymore" or "I don't live there any more". A student who wants to be on the safe side could always use "any more". But there are situations such as the sentence in blue above where "anymore" does help clarity.
[in full at 04.04.21a.htm]
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