Children who are native speakers of English do something extremely interesting and simultaneously frustrating for some parents who fret over whether or not their children are smart and whether or not their children speak "properly."
At some point, that child will utter something like, "Mommy, he goed," and the adoring parent will respond with something like, "No, honey, he went."
While this event should be an exciting and positive experience for parents, it is more often frustrating since the child will persist with "he goed" for some time, regardless of the parents' corrections. The reason for this (and you might be wondering what this has to do with algebra) is that linguistic constructions of verbs may be strongly rooted in human biology (thus children can generate past tense patterns—add "-d" or "-t" sound—once that pattern has been triggered, but they must learn and be capable or learning irregular verbs); therefore, when