Might could be.

source: 
COCA
Entry: 
1055
Example: 
Might could be.
Modal 1: 
might
Modal 2: 
could
Gender: 
Unknown
Race/Ethnicity: 
Unknown
Age: 
unknown
Level of Education: 
Unknown
Home Community, Town, or State: 
Unknown
Location Collected: 
Fictional Story
Year: 
2004
Relation to Addressee: 
friend to friend
Medium: 
Written
Sentence Structure: 
1.0
Status: 
Naturalistic
Notes: 
Source: Turzillo, Mary A. 2004. 'An Old Fashioned Martian Girl: Conclusion' in Analog Science Fiction and Fact 124:11 Full Context: me, we had a plan to commandeer all the soyuzoids at midnight. What time do you think it is? " " I don't have an implant. Soyuzoids? You could fly one? " " Does a rover freeze up in the fines? Course I could. Whoo, Kapera, I'm loopy. The cold is making me crazy. " " At midnight? Think hard, Nanoannie. They have to let us loose from these things when we get to Yggdrasil. How? " She thought. " A timer? " " Might could be. Listen, how about we try and adjust the timer on each other's carapace? How much time will it take to get to Yggdrasil? " " I don't know. Just run it to the end of the timer's clock. Worth a try. " Kapera was silent. Then, " My hands are weak. Get me out first, and maybe then I can get you out somehow. " Kapera's carapace bobbed against her head. She tapped to indicate Kapera