Realis moodA realis mood (abbreviated ) is a grammatical mood which is used principally to indicate that something is a statement of fact; in other words, to express what the speaker considers to be a known state of affairs, as in declarative sentences. Most languages have a single realis mood called the indicative mood, although some languages have additional realis moods, for example to express different levels of certainty. By contrast, an irrealis mood is used to express something that is not known to be the case in reality.
Affirmation and negationIn linguistics and grammar, affirmation (abbreviated ) and negation () are ways in which grammar encodes positive and negative polarity into verb phrases, clauses, or other utterances. An affirmative (positive) form is used to express the validity or truth of a basic assertion, while a negative form expresses its falsity. For example, the affirmative sentence "Jane is here" asserts that it is true that Jane is currently located near the speaker.
Irrealis moodIn linguistics, irrealis moods (abbreviated ) are the main set of grammatical moods that indicate that a certain situation or action is not known to have happened at the moment the speaker is talking. This contrasts with the realis moods. Every language has grammatical ways of expressing unreality. Linguists tend to reserve the term "irrealis" for particular morphological markers or clause types. Many languages with irrealis mood make further subdivisions between kinds of irrealis moods.
Optative moodThe optative mood (ˈQptətɪv or Qpˈteɪtɪv; abbreviated ) is a grammatical mood that indicates a wish or hope regarding a given action. It is a superset of the cohortative mood and is closely related to the subjunctive mood but is distinct from the desiderative mood. English has no morphological optative, but various constructions impute an optative meaning. Examples of languages with a morphological optative mood are Ancient Greek, Albanian, Armenian, Georgian, Friulian, Kazakh, Kurdish, Navajo, Old Prussian, Old Persian, Sanskrit, Turkish, and Yup'ik.
Speech actIn the philosophy of language and linguistics, speech act is something expressed by an individual that not only presents information but performs an action as well. For example, the phrase "I would like the kimchi; could you please pass it to me?" is considered a speech act as it expresses the speaker's desire to acquire the kimchi, as well as presenting a request that someone pass the kimchi to them.
Deontic modalityDeontic modality (abbreviated ) is a linguistic modality that indicates how the world ought to be according to certain norms, expectations, speaker desires, etc. In other words, a deontic expression indicates that the state of the world (where 'world' is loosely defined here in terms of the surrounding circumstances) does not meet some standard or ideal, whether that standard be social (such as laws), personal (desires), etc. The sentence containing the deontic modal generally indicates some action that would change the world so that it becomes closer to the standard or ideal.
Habitual aspectIn linguistics, the aspect of a verb is a that defines the temporal flow (or lack thereof) in a given action, event, or state. As its name suggests, the habitual aspect (abbreviated ), not to be confused with iterative aspect or frequentative aspect, specifies an action as occurring habitually: the subject performs the action usually, ordinarily, or customarily. As such, the habitual aspect provides structural information on the nature of the subject referent, "John smokes" being interpretable as "John is a smoker", "Enjoh habitually gets up early in the morning" as "Enjoh is an early bird".
Latin grammarLatin is a heavily inflected language with largely free word order. Nouns are inflected for number and case; pronouns and adjectives (including participles) are inflected for number, case, and gender; and verbs are inflected for person, number, tense, aspect, voice, and mood. The inflections are often changes in the ending of a word, but can be more complicated, especially with verbs. Thus verbs can take any of over 100 different endings to express different meanings, for example regō "I rule", regor "I am ruled", regere "to rule", regī "to be ruled".
HortativeIn linguistics, hortative modalities (ˈhɔrtətɪv; abbreviated ) are verbal expressions used by the speaker to encourage or discourage an action. Different hortatives can be used to express greater or lesser intensity, or the speaker's attitude, for or against it. Hortative modalities signal the speaker's encouragement or discouragement toward the addressee's bringing about the action of an utterance. The term hortative dates to 1576, from Late Latin hortatorius "encouraging, cheering", from hortatus, past participle of hortari "exhort, encourage", intensive of horiri "urge, incite, encourage".
Non-finite clauseIn linguistics, a non-finite clause is a dependent or embedded clause that represents a state or event in the same way no matter whether it takes place before, during, or after text production. In this sense, a non-finite dependent clause represents one process as a circumstance for another without specifying the time when it takes place as in the following examples: Non-Finite Dependent Clauses I'm going to Broadway to watch a play. I went to Broadway to watch a play. Finite Dependent Clauses I'm going to Broadway so I can watch a play.
