38 some circumstances keep and in others lose its own final vowel. If no subscript v or c follows a suffix, either other factors determine the retention or loss of the final vowel or the rule has not yet been determined. Grammatical persons are indicated by the numbers 1, 2, 3, and 4, usually followed by a p, e.g. -ja Ip possessive suffix, -ma 2p possessive suffix. Verbal inflectional suffixes have the subject person on the left and the complement person on the right of a right- pointing arrow, e.g. 1+2 means Ip subject, 2p complement. Verb tenses are sometimes abbreviated as S (Simple), F (Future), I (Imperative), RDK (Remote Direct Knowledge), RIK (Remote Indirect Knowledge), D-1 (Desiderative), D-2 (Remonstrator), IF (Inferential), and NI (Non-Involver). Aymara examples are underlined when treated as base forms or words (that is, as morphemes or combina- tions thereof): juma.mpi ‘with you' juma 2p pronoun -mpi os 'with' the suffix -jama and variants Jupa.x wali suma jagi.wa. ‘He/she is a good person.' Aymara examples are placed between slant lines when treated as allomorphs: