I'm not sure, but I might could.
source:
LAGS
Entry:
509
Example:
I'm not sure, but I might could.
Modal 1:
might
Modal 2:
could
Gender:
Female
Race/Ethnicity:
Black
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:
1.1
Status:
Naturalistic