Split ergativityIn linguistic typology, split ergativity is a feature of certain languages where some constructions use ergative syntax and morphology, but other constructions show another pattern, usually nominative–accusative. The conditions in which ergative constructions are used varies among different languages. Ergative–absolutive alignment Nominative–accusative languages (including European languages, with the notable exception of Basque) treat both the actor in a clause with a transitive verb and the experiencer in a clause with an intransitive verb in the same way grammatically.
Dummy pronounA dummy pronoun is a deictic pronoun that fulfills a syntactical requirement without providing a contextually explicit meaning of its referent. As such, it is an example of exophora. Dummy pronouns are used in many Germanic languages, including German and English. Pronoun-dropping languages such as Spanish, Portuguese, Chinese, and Turkish do not require dummy pronouns.
Unergative verbAn unergative verb is an intransitive verb that is characterized semantically by having a subject argument which is an agent that actively initiates the action expressed by the verb. For example, in English, talk and resign in the sentence "You talk and you resign" are unergative verbs, since they are intransitive (one does not say "you talk someone") and "you" are the initiator or responsible for talking and resigning.
Impersonal verbIn linguistics, an impersonal verb is one that has no determinate subject. For example, in the sentence "It rains", rain is an impersonal verb and the pronoun it does not refer to anything. In many languages the verb takes a third person singular inflection and often appears with an expletive subject. In the active voice, impersonal verbs can be used to express operation of nature, mental distress, and acts with no reference to the doer. Impersonal verbs are also called weather verbs because they frequently appear in the context of weather description.
Agent (grammar)In linguistics, a grammatical agent is the thematic relation of the cause or initiator to an event. The agent is a semantic concept distinct from the subject of a sentence as well as from the topic. While the subject is determined syntactically, primarily through word order, the agent is determined through its relationship to the action expressed by the verb. For example, in the sentence "The little girl was bitten by the dog", girl is the subject, but dog is the agent.
Intransitive caseIn grammar, the intransitive case (abbreviated ), also denominated passive case or patient case, is a grammatical case used in some languages to mark the argument of an intransitive verb, but not used with transitive verbs. It is generally seen in languages that display tripartite nominal morphologies; it contrasts with the nominative and absolutive cases employed in other languages' morphosyntax to mark the argument of intransitive clauses.
Applicative voiceThe applicative voice (əˈplɪkətɪv; abbreviated or ) is a grammatical voice that promotes an oblique argument of a verb to the core object argument. It is generally considered a valency-increasing morpheme. The Applicative is often found in agglutinative languages, such as the Bantu languages and Austronesian languages. Other examples include Nuxalk, Ubykh, and Ainu. Prototypically, applicatives apply to intransitive verbs. They can also be called "advancements" or "object promotion" because they bring a peripheral object to the centre as a direct object.
Tripartite alignmentIn linguistic typology, tripartite alignment is a type of morphosyntactic alignment in which the main argument ('subject') of an intransitive verb, the agent argument ('subject') of a transitive verb, and the patient argument ('direct object') of a transitive verb are each treated distinctly in the grammatical system of a language. This is in contrast with nominative-accusative and ergative-absolutive alignment languages, in which the argument of an intransitive verb patterns with either the agent argument of the transitive (in accusative languages) or with the patient argument of the transitive (in ergative languages).
Active–stative alignmentIn 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.
