> all possesives end with 's  except its

    May be true in American english, but not in English english. Some
plural uses end in s'. e.g. "the judges' rules".

    This is not really a good place to ask such questions. American usage
does quite legitimately differ from the original. :-) America has been
independent for two centuries. It has the right to do as it pleases.

Best Wishes,
Bill.

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