The keyword phrase "patriots day movie clips" functions as a noun phrase. This classification is based on its grammatical structure, where the core element is a noun, modified by other words that collectively describe it.
Breaking down the phrase, "Patriots Day" itself acts as a proper noun, specifically referring to the title of a particular film. Within "Patriots Day," "Patriots" serves as an attributive noun modifying "Day," forming a compound noun. Subsequently, "movie" also functions as an attributive noun, modifying the head noun "clips" by specifying the type of clips. The final word, "clips," is the primary noun in the phrase, denoting short extracts of a film. Thus, the entire construction acts as a cohesive unit referring to specific film excerpts, hence its classification as a noun phrase.
In practical application, "patriots day movie clips" would be used in a sentence where a noun or noun phrase is required, such as the subject of a sentence ("Patriots Day movie clips are available online") or the object of a verb ("I am looking for Patriots Day movie clips"). Its grammatical role is consistently that of a nominal entity.
