Used to could.
source:
LAGS\
Entry:
662
Example:
Used to could.
Modal 1:
used to
Modal 2:
could
Gender:
Female
Race/Ethnicity:
White
Age:
87
Level of Education:
7th grade
Home Community, Town, or State:
FL (Rock Hill)
Location Collected:
FL (Rock Hill)
Year:
1973
Relation to Addressee:
subject to fieldworker
Medium:
Spoken
Sentence Structure:
unknown
Status:
Naturalistic