I can't tell the difference now, but I used to could.

source:

LAGS

Entry:

647

Example:

I can't tell the difference now, but I used to could.

Gender:

Female

Race/Ethnicity:

White

Age:

86

Level of Education:

Some high school

Home Community, Town, or State:

AR (Greenbrier)

Location Collected:

AR (Greenbrier)

Year:

1974

Relation to Addressee:

subject to fieldworker

Medium:

Spoken

Sentence Structure:

1.1

Status:

Naturalistic