Prescriptive grammar says "are", for all the reasons cited above in these comments.

The title of the song is inaccurate according to the prescriptive grammar for Portuguese.

By definition, debate about whether singular they is acceptable or not lies within the realm of prescriptive grammar.

Prescriptive grammar is taught in primary school (elementary school).

The naturalness gave force and freedom since there was no formalized prescriptive grammar binding the expression.

Prescriptive grammar See traditional grammar.

Prescriptive grammars of controlled natural languages define grammaticality as a matter of explicit consensus.

There is nonetheless a traditional rule of prescriptive grammar, applied chiefly to British English, governing the use of shall and will.

It offers a systematic and non-genre specific approach to music analysis and composition, a descriptive rather than prescriptive grammar of music.

(prescriptive grammar book, in German)

In that case, we would have to refer them to Ann Bodine's excellent essay 'Androcentrism in prescriptive grammar'.

(Prescriptive grammar would require the particle ga after the subject: Kinō ano hito ga aruita.

In prescriptive grammar fewer is the prescribed comparative to be used in relation to discretely quantifiable nouns, i.e., count nouns.

Mention of it by ancient grammarians, including prescriptive grammar texts from the Late Latin period condemning linguistic "errors" that represent spoken Latin.

Mencken assaulted the prescriptive grammar of these critics and American "schoolmarms", arguing, like Samuel Johnson in the preface to his dictionary, that language evolves independently of textbooks.

The same construction is sometimes applied to women's names, but the practice is considered by prescriptive grammar as incorrect, with the exception of feminine proper nouns that have a masculine-like ending:

According to traditional prescriptive grammar, who is the subjective (nominative) form only, while whom is the corresponding objective form (like him is the objective form corresponding to he).

In addition to examining such seemingly technical ideas as descriptive linguistics versus prescriptive grammar, Wallace digresses to discuss the legitimacy of Ebonics as opposed to "white male" standard English.

The first prescriptive grammar book of Lithuanian was commissioned by the Duke of Prussia, Frederick William, for use in the Lithuanian-speaking parishes of East-Prussia.

Prescriptive grammars often claim that preposition stranding should be avoided in English as well; however, in certain contexts pied-piping of prepositions in English may make a sentence feel artificial or stilted.

The choice between preterite and perfect, according to prescriptive grammars from both Spain and Spanish America, is based on the psychological time frame-whether expressed or merely implied-in which the past action is embedded.

Formal written Brazilian Portuguese tends, however, to omit the definite article in accordance with prescriptive grammar rules derived from Classical Portuguese, even though the alternative form is also considered correct, but many professors consider it inelegant.

Linguists tend to view prescriptive grammars as having little justification beyond their authors' aesthetic tastes, although style guides may give useful advice about standard language employment, based on descriptions of usage in contemporary writings of the same language.