| Form | noun + who / which / that + clause; right after the noun | The woman who lives next door is a nurse. |
| who, which | who for people, which for things | The woman who lives next door is a nurse. / The book which I bought was cheap. |
| that | people or things, in defining clauses only | The film that we saw was long. |
| whose | possession; a noun follows | The man whose car was stolen called the police. |
| where | places | The café where we met has closed. |
| Subject pronoun | stays: a verb follows | The girl who speaks French is my cousin. |
| Object pronoun | can be left out in a defining clause only | The film I saw was long. |
| Defining | says which one; no commas | The man who called is my uncle. |
| Non-defining | extra information in commas; who / which / whose / where | Paris, which I visited in May, is beautiful. |
| Trap | where already includes the preposition | The house where I live is old. |