Discourse and grammar
          (interaction of syntax, morphology, and discourse)

Morphology
          (tense-aspect-modality, evidentiality, inflection, derivation)

Language change and language contact
          (grammaticization, sound change, dialectology, structure¬†replication, loan processes)

Andean and Amazonian languages
          (areal and typological approaches to linguistic structures)

Quechuan linguistics

Language documentation and conservation