concluir - to conclude, to finish

conformar - to resign, to content oneself with, to conform

confundir - to confuse

congelar - to freezen, to congeal

conocer - to know (preterite: to meet)

considerar - to consider, to think

conspirar - to conspire

constatar - to verify, to state, to check

contemplar - to contemplate

contentar - to make-become happy, glad

contraponer - to compare, to contrast