In many languages, adjectives agree with a noun phrase in number and gender, but not in person. In others, ditransitive verbs can agree with their theme argument in number and gender, but not in person (the Person Case Constraint (PCC)).However, a unified account of these two similar patterns has rarely been attempted. In The work reported in section 4 was done in collaboration with Nadya Vinokurova, and the judgments are hers, in many cases checked with her contacts. I given special thanks to her for her inspiration and generous help in this.Most agreement morphemes are glossed with a complex symbol constructed out of a subset of the following three elements: an Arabic number expressing the person of the agreed with nominal (1, 2, or 3), a lower case letter expressing the number of the agreed with nominal (s singular, d dual, or 3 plural), and an upper case letter expressing the grammatical function of the agreed with nominal (S subject, O object, P possessor, A absolutive, E ergative). Other abbreviations in the glosses of examples include: A,