τὰ μέλλοντα τοῖς γεγενημένοις τεκμαίρεσθαι → determine the future on the basis of the past
P. and V. ἀκουσίως, or use P. and V. ἄκων or οὐχ ἑκών, agreeing with subject; e. g., do a thing involuntarily: P. and V. ἄκων ποιεῖν τι.
