Interrogativewikipedia
Interrogative is a term used in grammar to refer to features that form questions.
interrogativeinterrogative sentenceinterrogative moodquestionsinterrogativityinterrogative formdeclarative questionspecialinterrogative modalityquestion formation

Question

questionwh-questionanswer
Interrogative is a term used in grammar to refer to features that form questions.
However, questions can also be asked without using these interrogative grammatical structures – for example one may use an imperative, as in "Tell me your name".

Grammatical mood

moodmoodsgrammatical mood
Such sentences may exhibit an interrogative grammatical mood. This applies particularly to languages that use different inflected verb forms to make questions.
Some examples of moods are indicative, interrogative, imperative, subjunctive, injunctive, optative, and potential.

Tag question

tag questiontag questionsquestion tag
Tag questions are questions "tagged" onto the end of sentences to invite confirmation, as in "She left earlier, didn't she?"
A tag question (also known as tail question) is a grammatical structure in which a declarative or an imperative statement is turned into interrogative fragment (the "tag").

Content clause

content clauseindirect questiondeclarative content clause
Indirect questions (or interrogative content clauses) are subordinate clauses used within sentences to refer to a question (as opposed to direct questions, which are interrogative sentences themselves).
There are two main kinds of content clauses: declarative content clauses (or that-clauses), which correspond to declarative sentences, and interrogative content clauses, which correspond to interrogative sentences.

Interrogative word

interrogative pronouninterrogative wordinterrogative
Interrogative sentences can serve as yes–no questions or as wh-questions, the latter being formed using an interrogative word such as who, which, where or how to specify the information required.
For more information about the grammatical rules for forming questions in various languages, see Interrogative.

Wh-movement

wh-movementwh''-frontingwh-fronting
However, in terms of word order, the interrogative word (or the phrase it is part of) is brought to the start of the sentence (an example of wh-fronting) in many languages.
In linguistics, wh-movement (also known as wh-fronting or wh-extraction or long-distance dependency) concerns special rules of syntax, observed in many languages around the world, involving the placement of interrogative words.

Question mark

question mark????
In languages written in Latin or Cyrillic, as well as certain other scripts, a question mark at the end of the sentence identifies it as a question.
'] (also known as interrogation point, query, or eroteme'' in journalism) is a punctuation mark that indicates an interrogative clause or phrase in many languages.

List of glossing abbreviations

abbreviatedglossing abbreviationglossing abbreviations
Interrogative mood or other interrogative forms may be denoted by the glossing abbreviation.

Do-support

do''-supportdo-supportinserted
In sentences where no such verb is otherwise present, the auxiliary do (does, did) is introduced to enable the inversion (for details see do-support, and.
The presence of an auxiliary (or copular) verb allows subject–auxiliary inversion to take place, as is required in most interrogative sentences in English.

Word order

word orderfree word orderconstituent order
Different languages have various ways of forming questions, such as word order or the insertion of interrogative particles.
However, most languages are generally assumed to have a basic word order, called the unmarked word order; other, marked word orders can then be used to emphasize a sentence element, to indicate modality (such as an interrogative modality), or for other purposes.

Irish language

IrishGaelicIrish Gaelic
Languages with some degree of this feature include Irish, Scottish Gaelic, Welsh, Greenlandic, Nenets, Central Alaskan Yup'ik, Turkish, Korean and Venetian.
There are a number of preverbal particles marking the negative, interrogative, subjunctive, relative clauses, etc. There is a verbal noun, and verbal adjective.

Greenlandic language

GreenlandicKalaallisutGreenlandic Inuit
Languages with some degree of this feature include Irish, Scottish Gaelic, Welsh, Greenlandic, Nenets, Central Alaskan Yup'ik, Turkish, Korean and Venetian.
The four independent moods are: indicative, interrogative, imperative, optative.

Modern English

modern EnglishEnglishModern
In the case of Modern English, inversion is used, but can only take place with a limited group of verbs (called auxiliaries or "special verbs").

A-not-A question

A-not-A
Another way of forming yes–no questions is the A-not-A construction, found for example in Chinese, which offers explicit yes or no alternatives:

Al-Fil

al-Fil105Surah CV
The surah is written in the interrogative form.

English clause syntax

frontingconditional
Sentences can be classified according to the purpose or function of the sentence into declarative (making a statement), interrogative (asking a question), exclamatory sentence or imperative (giving an order).

Unish

The word order of a sentence is “subject-verb-object/complement.” This word order is always kept, regardless of a declarative sentence or an interrogative sentence.

English language

EnglishEnglish-languageen
Modern English relies more on auxiliary verbs and word order for the expression of complex tenses, aspect and mood, as well as passive constructions, interrogatives and some negation.

Grammatical conjugation

conjugationconjugatedconjugations
Conjugation may be affected by person, number, gender, tense, aspect, mood, voice, case, and other grammatical categories such as possession, definiteness, politeness, causativity, clusivity, interrogativity, transitivity, valency, polarity, telicity, volition, mirativity, evidentiality, animacy, associativity, pluractionality, reciprocity, agreement, polypersonal agreement, incorporation, noun class, noun classifiers, and verb classifiers in some languages.

Performative utterance

performativeperformative utteranceperformatives
After mentioning several examples of sentences which are not so used, and not truth-evaluable (among them nonsensical sentences, interrogatives, directives and "ethical" propositions), he introduces "performative" sentences or illocutionary act as another instance.

Transformational grammar

transformational grammartransformational generative grammartransformational
A transformational-generative (or simply transformational) grammar thus involved two types of productive rules: phrase structure rules, such as "S → NP VP" (a sentence may consist of a noun phrase followed by a verb phrase) etc., which could be used to generate grammatical sentences with associated parse trees (phrase markers, or P markers); and transformational rules, such as rules for converting statements to questions or active to passive voice, which acted on the phrase markers to produce other grammatically-correct sentences.

Hokkien pronouns

The Hokkien language use a variety of differing demonstrative and interrogative pronouns, and many of them are only with slightly different meanings.

Affect (linguistics)

affectspeaker affectaffected
Affects such as sarcasm, contempt, dismissal, distaste, disgust, disbelief, exasperation, boredom, anger, joy, respect or disrespect, sympathy, pity, gratitude, wonder, admiration, humility, and awe are frequently conveyed through paralinguistic mechanisms such as intonation, facial expression, and gesture, and thus require recourse to punctuation or emoticons when reduced to writing, but there are grammatical and lexical expressions of affect as well, such as pejorative and approbative or laudative expressions or inflections, adversative forms, honorific and deferential language, interrogatives and tag questions, and some types of evidentiality.

Realis mood

indicativeindicative moodrealis
For example, many languages use indicative verb forms to ask questions (this is sometimes called interrogative mood) and in various other situations where the meaning is in fact of the irrealis type (as in the English "I hope it works", where the indicative works is used even though it refers to a desired rather than real state of affairs).