I think it is the a speaker's <span>behavior</span> knowledge both of the grammatical rules of a language and of the rules for appropriate use in social contexts
Hope i helped you
D, Each country in North America uses it’s own currency, they have their own rules, equal rights and rights and different ideas, not everyone is the same in life also, some people use Euros and some people use the U.S. dollar, some people use different things for money.
