http://rapgenius.com/rapstats?q=nigga%2C%20yo%2C%20bitch
http://rapgenius.com/rapstats?q=nigga%2C%20yo%2C%20bitch%2C%...
nigga gets up near 'be' and 'is' but it's well short of 'a' and 'the'
Incidentally: http://rapgenius.com/rapstats?q=nigger,%20nigga
http://rapgenius.com/rapstats?q=nigga%2C%20yo%2C%20bitch