The Relative Pronoun who has different forms for Accusative and Genitive.
Singular and Plural
Nominative : who
Genitive : whose
Accusative : whom/who
This is the boy ( or girl ) who works hard. This is the boy ( or girl ) whose exercise is done well. This is the boy ( or girl ) whom/who all praise. These are the boys (or girls ) who work hard. These are the boys (or girls ) whose exercises are done well. These are the boys (or girls ) whom/who all praise.
It will be noticed that the forms are the same for singular and plural, masculine and feminine.
Singular and Plural
Nominative : who
Genitive : whose
Accusative : whom/who
This is the boy ( or girl ) who works hard. This is the boy ( or girl ) whose exercise is done well. This is the boy ( or girl ) whom/who all praise. These are the boys (or girls ) who work hard. These are the boys (or girls ) whose exercises are done well. These are the boys (or girls ) whom/who all praise.
It will be noticed that the forms are the same for singular and plural, masculine and feminine.
- The Relative Pronoun which has the same form for the Nominative and Accusative cases; as,
- The Relative Pronoun which has no Genitive case, but whose is used as a substitute for ' of which '; as,
- The Relative Pronoun that has the same form in the Singular and Plural, and in the Nominative and Accusative. It has no Genitive case; as, He that is content is rich. They that touch pitch will be defiled. Take anything that you like.
- The Relative Pronoun what is used only in the Singular, and has the same form in the Nominative and Accusative; as, What has happened is not clear. I say what I mean. He failed in what he attempted.