You might would have done the same thing that the black have done.

source: 
LAGS
Entry: 
572
Example: 
You might would have done the same thing that the blacks have done.
Modal 1: 
might
Modal 2: 
would
Gender: 
Male
Race/Ethnicity: 
White
Age: 
43
Level of Education: 
High school and business college
Home Community, Town, or State: 
AR (Little Rock)
Location Collected: 
AR (Little Rock)
Year: 
1975
Relation to Addressee: 
subject to fieldworker
Medium: 
Spoken
Sentence Structure: 
1.4
Status: 
Naturalistic