Should ought to.

source: 
LAGS
Entry: 
606
Example: 
Should ought to.
Modal 1: 
should
Modal 2: 
ought to
Gender: 
Male
Race/Ethnicity: 
White
Age: 
58
Level of Education: 
Graduate school (Doctoral degree)
Home Community, Town, or State: 
LA (New Orleans)
Location Collected: 
LA (New Orleans)
Year: 
1983
Relation to Addressee: 
subject to fieldworker
Medium: 
Spoken
Sentence Structure: 
unknown
Status: 
Naturalistic