Unlike many Oto-Manguean languages that tend towards an isolating typology, they are morphologically complex headmarking languages with complex systems of conjugational classes both for verbs and nouns, and in the Pamean languages there are highly complex patterns of suppletion.
In contrast to many Oto-Manguean languages that exhibit isolating tendencies, these languages are characterized by a complex morphology, featuring intricate headmarking systems for both verbs and nouns, while the Pamean languages demonstrate highly complex suppletion patterns.