Relative Pronouns Who, whom, which, that, where, when
who / whom / whose Used for people which Used for things and animals whenwhere time place that Can replace who(m)/which
who/which/that Make clear which person or thing The woman who/that discovered radium. She held out the hand which/that was hurt. Tell us more about a person or thing (can leave it out) Mr Thomspon, who is 76, has just retired. We had fish and chips, which is my favourite meal.
who/which/that or nothing Who/which/that is the subject. She is the girl who/that sits next to me. Who/which/that is not the subclause It reminded him of the house (which/that) he used to rent in Oxford. Subject = onderwerp
who / whom Difference in formal language Nowadays not used. If you want to know: Who is used when it is the subject of the sentence. Who is used when it is the object (voorwerp) of the sentence or following a preposition (voorzetsel). He is the guy who is in my class. [who is the subject of the sentence] He is the guy whom I like. [whom is the object of support] He is the guy to whom I’d like to speak. [whom is following the preposition to]
whose Possession This is George, whose brother went to school with me.