The keyword phrase "September 11th never forget" functions grammatically as an imperative clause. Although it is composed of multiple parts of speech, its collective purpose is to issue a command or exhortation. The central element and main point of the phrase is the verb "forget," which is presented in the imperative mood and modified by the adverb "never." This structure transforms the historical event into a direct instruction for an audience.
A detailed grammatical analysis breaks the clause into its constituent parts. "September 11th" is a noun phrase (a proper noun functioning as a date) that serves as the direct object of the verb. "Never" is an adverb of frequency that negates the action. "Forget" is a transitive verb in its base form, used here in the imperative mood, which implies an unstated subject such as "you" or "we." The syntax, while slightly inverted from the standard "Never forget September 11th," is a common rhetorical construction that places emphasis on the subject matter first.
Understanding the phrase as an imperative clause is crucial because it establishes the article's core purpose as a call to action, specifically an act of remembrance. The keyword is not a neutral descriptor but a persuasive statement that frames the topic as a moral or civic duty. Consequently, an article centered on this term should focus on themes of memory, commemoration, legacy, and the ongoing significance of the event, directly engaging the reader in the act of not forgetting.