Might could.
source:
LAGS
Entry:
442
Example:
Might could.
Modal 1:
might
Modal 2:
could
Gender:
Male
Race/Ethnicity:
White
Age:
24
Level of Education:
Graduate school (at time of interview; Emory University)
Home Community, Town, or State:
TN (Chattanooga)
Location Collected:
TN (Chattanooga)
Year:
1978
Relation to Addressee:
subject to fieldworker
Medium:
Spoken
Sentence Structure:
unknown
Status:
Naturalistic