Colloquial English constructions fall into two categories: those that are socially and stylistically diagnostic but have no regional affiliation, and those that are regionally restricted but usually not diagnostic socially or stylistically. Features in the first category are typically recognized as vernacular, so they attract the attention of English teachers, prescriptive dictionary editors, and other language watchers concerned about the health and vitality of the language. Features in the second category, however, may either occur so transparently that they go unnoticed until attention is drawn to them, or be widely recognized as dialectal stereotypes.