Used to couldn't.
source:
LAGS
Entry:
619
Example:
Used to couldn't.
Modal 1:
used to
Modal 2:
couldn't
Gender:
Male
Race/Ethnicity:
White
Age:
95
Level of Education:
8th grade
Home Community, Town, or State:
MS (Pike County)
Location Collected:
MS (Holmesville)
Year:
1978
Relation to Addressee:
subject to fieldworker
Medium:
Spoken
Sentence Structure:
unknown
Status:
Naturalistic