Practice your Cora. With the expressions from Name of the material: Haspelmath and Tadmor list in the Naayeri language, variant kuráàpa (cora corapeño)
Elicitor: Parra, Rodrigo Gutierrez
Collaborator: Casiano de la Cruz Chávez
Click on the blue button which contains the expression you hear in English, with the buttons you can hear the expression in Cora.
But not just by ear, study them using the and Praat, record your imitation and let yourself decide when you say it.