It is in fact an issue of grammar. Irregularity is primary feature of human language grammar--a source of delight to some and a source of annoyance to others. O

It is in fact an issue of grammar. Irregularity is primary feature of human language grammar--a source of delight to some and a source of annoyance to others. One of my favorite examples from language acquisition research is the small child who says "I goed to the store." In this case it's literally the exception that proves the rule.