The indefinite pronouns algún and ningún need to agree in gender (when possible) and in number with the noun they are substituting. Algo and alguien are not gender or number specific.

Original: Each student will develop his or her own lesson plan. Revised: All students will develop their own lesson plans. Change point-of-view or use an indefinite pronoun. Original: A person's ...

In order to replace “someone,” we need a singular pronoun, “he” or “she.” Pronoun-antecedent agreement becomes complicated when you are dealing with generic nouns, compound antecedents, indefinite ...

But when you write, words like everybody, somebody and nothing are singular and require a singular pronoun for agreement. Because this group of indefinite pronouns is singular, your choice of a ...

Therefore, the sentence above should begin “Congress passes.” One especially difficult kind of subject-verb agreement problem is tied to the use of indefinite pronouns such as “one of,” “each of” and ...

Additionally, there is a third person indefinite pronoun which refers to an underspecified, defocused third person; in some languages, this pronoun was extended to also refer to females. As Chafe ...