Indefinite pronouns

Pronouns that do not refer to a definite person or thing, but can refer to anyone or anything.

• What pronouns express indefinite reference of a person?
  person who someone anyone everyone no one each one whoever
• What pronouns express indefinite reference of a thing?
  thing what something anything everything nothing each thing whatever whichever
• What pronouns express indefinite reference of a time?
  time period when sometime anytime every time never at no time each time whenever sometimes
• What pronouns express indefinite reference of a place?
  place where somewhere anywhere everywhere nowhere each place wherever which way
• What pronouns express indefinite reference of a reason?
  reason why for what reason for some reason for any reason for each and every reason for no reason why ever
• What pronouns express indefinite reference of a manner?
  manner means how somehow anyhow every way no way each way however
• What pronouns express indefinite reference of an amount?
  amount how much however many however much plenty