Agent (grammar) in the context of "Volition (linguistics)"

Active voice is a grammatical voice prevalent in many of the world's languages. It is the default voice for clauses that feature a transitive verb in nominative–accusative languages, including English and most Indo-European languages. In these languages, a verb is typically in the active voice when the subject of the verb is the doer of the action.

In active voice, the subject of the sentence performs the action expressed by the main verb and is thus the agent. For example, in the sentence "The cat ate the fish", 'the cat' functions as the agent performing the action of eating. This contrasts with the passive voice, where the subject is the recipient of the action, such as in "The fish was eaten by the cat." The use of both active and passive voices in languages enhances versatility in sentence construction, allowing either the semantic agent or patient to assume the syntactic role of the subject.

In grammar, the ergative case (abbreviated erg) is the grammatical case that identifies a nominal phrase as the agent of a transitive verb in ergative–absolutive languages.

In linguistic typology, a subject–object–verb (SOV) language is one in which the subject, object, and verb of a sentence always or usually appear in that order. If English were SOV, "Sam apples ate" would be an ordinary sentence, as opposed to the actual Standard English "Sam ate apples" which is subject–verb–object (SVO).

The term is often loosely used for ergative languages like Adyghe and Basque that in fact have agents instead of subjects.

In linguistic typology, active–stative alignment (also split intransitive alignment or semantic alignment) is a type of morphosyntactic alignment in which the sole argument ("subject") of an intransitive clause (often symbolized as S) is sometimes marked in the same way as an agent of a transitive verb (that is, like a subject such as "I" or "she" in English) but other times in the same way as a direct object (such as "me" or "her" in English). Languages with active–stative alignment are often called active languages.

The case or agreement of the intransitive argument (S) depends on semantic or lexical criteria particular to each language. The criteria tend to be based on the degree of volition, or control over the verbal action exercised by the participant.

In linguistics, pluractionality, or verbal number, if not used in its aspectual sense, is a grammatical aspect that indicates that the action or participants of a verb is, or are, plural. This differs from frequentative or iterative aspects in that the latter have no implication for the number of participants of the verb.

Often a pluractional transitive verb indicates that the object is plural, whereas in a pluractional intransitive verb the subject is plural. This is sometimes taken as an element of ergativity in the language. However, the essence of pluractionality is that the action of the verb is plural, whether because several people perform the action, it is performed on several objects, or it is performed several times. The exact interpretation may depend on the semantics of the verb as well as the context in which it is used. The lack of verbal number does not generally mean that the action and participants are singular, but rather that there is no particularly notable plurality; thus it may be better described as paucal vs. multiple rather than singular vs. plural.

A reciprocal construction (abbreviated RECP) is a grammatical pattern in which each of the participants occupies both the role of agent and patient with respect to the other. An example is the English sentence John and Mary criticized each other: John criticized Mary, and Mary criticized John. Reciprocal constructions can be said to express mutual relationships.

Many languages, such as Semitic languages, Altaic languages or Bantu languages, have special reciprocal affixes in verbs. For example, Turkish reciprocal constructions which might also have slightly different meanings than the verbs they originate from, have the suffix -iş (-ış, -uş or -üş depending on the vowel harmony):

A transitive verb is a verb that entails one or more transitive objects, for example, 'enjoys' in Amadeus enjoys music. This contrasts with intransitive verbs, which do not entail transitive objects, for example, 'arose' in Beatrice arose.

Transitivity is traditionally thought of as a global property of a clause, by which activity is transferred from an agent to a patient.