Indefinite pronouns can be a little challenging to understand and to use correctly. I find that by breaking them down into groups according to usage they are easier to learn and remember. The three groups are singular, plural, and those that can be either singular or plural. I have included several links that will help you understand these pronouns a little better.
Indefinite Pronoun Review 1
Indefinite Pronoun Review 2
Indefinite Pronoun Practice 1 (The quiz/practice is found at the bottom of the page.)
Indefinite Pronoun Practice 2
Indefinite Pronoun Practice 3
My name is Craig, and I've been teaching English for many years. I initially created this site for my students, but all English learners are welcome. I hope you find something helpful to you. Feel free to leave suggestions or ideas in the Comments section under any entry.