Might could.
source:
LAGS
Entry:
436
Example:
Might could.
Modal 1:
might
Modal 2:
could
Gender:
Male
Race/Ethnicity:
White
Age:
50
Level of Education:
Unknown
Home Community, Town, or State:
AL (Burgess Plantation)
Location Collected:
AL (Russellville)
Year:
1974
Relation to Addressee:
subject to fieldworker
Medium:
Spoken
Status:
Naturalistic