For most provincial laws, the question is whether or not a particular couple are «spouses . for at least three years, have lived with someone else. . in a «relationship of some permanence» and. . have had a child together, have signed an adult interdependent partner agreement with someone else. As a result of these definitions, and how they change depending on the legislation you’re looking at, people might qualify as «common-law partners» under the Canada Pension Plan but not…