* Determiner: This is the most common use of "all." It comes before a noun and indicates the entire quantity or extent of something.
* Example: "I ate all the cookies."
* Pronoun: "All" can also be a pronoun, referring to the whole amount or quantity of something previously mentioned.
* Example: "They invited all to the party."
* Adjective: "All" can act as an adjective, describing a noun with the meaning of "whole" or "complete."
* Example: "He gave me his all."
* Adverb: In some cases, "all" can modify a verb, adjective, or another adverb, meaning "completely" or "entirely."
* Example: "He all but fainted."
To determine the correct part of speech for "all," consider its role in the sentence and how it relates to the surrounding words.