English language in southern England
South East England and the Home Counties (the counties bordering London) tend to reflect the interface between the London region and other regional accents. Affluent districts are associated with a modified Received Pronunciation (RP) accent, reflecting their traditional popularity with upper middle and upper-class residents which has spread throughout more social classes broadly in rural areas with commuting access to London. Less affluent areas have traditionally mainstream London accents (that is, variants of the Estuary English accent) that grade into southern rural outside urban areas.
West Midlands English
Certain areas of the West Midlands are stereotyped as having stronger accents than others, Dudley in the Black Country being an example. There are some local phrases in the Black Country that are renowned. People do tend to substitute a reply of "arr" for "yes". Generally, most words are shortened, most commonly being "I haven't" to "I ay" (which can be argued as an even shorter form of "I ain't").
In the south of the West Midlands (southern Warwickshire and Worcestershire), the accent is more similar to the general southern accent.