Which of the following is NOT a type of pronoun?

The term "comparative pronoun" is not a recognized category of pronouns in English. The other three types listed are indeed categories of pronouns.

Objective pronouns include words such as "me," "him," "her," "us," and "them," which are used as the object of a verb or preposition. Intensive pronouns, such as "myself," "yourself," "himself," "herself," and similar forms, emphasize a noun or pronoun already mentioned. Reflexive pronouns, which also share similar forms, indicate that the subject of the sentence is also the object, such as "I saw myself," where the subject and object refer to the same entity.

While comparative constructions exist in English, they do not form a type of pronoun. Instead, comparison in sentences is usually achieved through adjectives or adverbs (e.g., "taller," "more quickly") rather than a distinct category of pronouns. Thus, identifying "comparative pronoun" as not being one of the established types helps clarify the classifications within the pronoun system.