Jaqaru morphology is extremely complex. Most of the grammatical information in Jaqaru is carried in the morphology. The basic person system consists of four persons. In the verb system, these four persons are expanded into a conjugation of ten grammatical person markers, each marking both subject and object in a single suffix. Also characteristic of the Jaqaru morphology (and all of the Jaqi languages) is the use of extensive vowel dropping for grammatical marking. The rules constraining vowel dropping are extensive, and can be conditioned by such things as morpheme identity, morpheme sequence, syntactic requirements, some phonological requirements and suffix requirements. (Hardman, 2000).