APM: The verb displays person agreement with only A.
(1) am taw-e nomi-l-ǝm.
(2) mān taw-e nomi-l-uw.
(3) am tān-anǝl nomi-jan-ǝm.
(4) mān tān-anǝl nomi-jan-uw.
In the Northern Mansi determinate conjugation, the verbal suffix refers to the person and number of the subject, and the number (but not the person) of the object (Kálmán 1976, Riese 2001). In the indeterminate conjugation, the verb does not agree with the object (not even in number).