Pronoun Case

Pronouns (and nouns) in English display "case" according to their function in the sentence. Their function can be:

  • subjective (they act as the subject)
  • objective (they act as the object)
  • possessive (they show possession of something else)

The following table shows the different forms for pronouns depending on case.

   subjective caseobjective casepossessive case
personal pronounssingular1stImemine
  2ndyouyouyours
3rdhe
she
it
him
her
it
his
hers
its
 plural1stweusours
  2ndyouyouyours
3rdtheythemtheirs
relative/interrogative pronouns  whowhomwhose
   whoeverwhomever 
   which/that/whatwhich/that/what 
indefinite pronouns  everybodyeverybodyeverybody's

A problem of case: Mary and I or Mary and me?

  1. Mary and I are delighted to be here today. (NOT Mary and me)
  2. The letter was addressed to Mary and me. (NOT Mary and I)

In 1, Mary and I are subjects, which is why the pronoun takes the subjective case ("I"). In 2, Mary and I are objects, which is why the pronoun takes the objective case ("me"). An easy way to check the correct case is to try the sentence without Mary. Would you say "I am delighted to be here" or "Me am delighted to be here"? Would you say "The letter was addressed to me" or "The letter was addressed to I"?