The suffix -"ap" takes transitive and intransitive verbs and yield agentive nominals. Tibetan nouns are marked for six cases&colon; absolutive, agentive, genitive, ablative, associative and oblique. Nouns may take one of four cases, those being nominative, agentive/instrumental, dative, or genitive. Non-aspectual forms include the infinitive, the imperative, and the agentive. The agentive is used for ergative and instrumental functions. An agentive affix is commonly used to form an agent noun from a verb. Zero-derived agentive nouns may show plurality by means of subject markers. The word is originally an agentive noun of the Latin verb 'to teach'. Lexical causatives are apparently constrained to involving only one agentive argument. Modern English does not mark the agentive grammatical role of a noun in a sentence. The agentive or objective actant follows immediately after the predicate. The otherwise unattested, agentive form "team" could thus mean "asperser" or "sorcerer". These are split into two varieties&colon; agentive and patientive ambitransitives. Agentive pronouns are marked and are only used as subjects of some verbs. Instead, passive meanings are sometimes expressed through the "Peal"; agentive ones, through the "Aphel".