39 Plural forms of interrogative pronouns: using additional elements

A - feature is pervasive or obligatory7
B - feature is neither pervasive nor extremely rare15
C - feature exists, but is extremely rare3
D - attested absence of feature42
X - feature is not applicable (given the structural make-up of the variety/P/C)6
? - no information on feature is available3

Feature area:
Pronouns, pronoun exchange, nominal gender
Typical example:
Who-all did you say was gonna be there?
Example source:
South Midland CollAmE (Murray/Simon 2008: 413)
Variety World Region Type Value
Id Primary text Variety Variety Type