The relative pronoun that always introduces essential information and can be omitted if it is the object of the clause. Relative pronouns CANNOT be omitted when they are the subject of the clause; ...

The relative pronoun used depends on the person or type of thing you are writing about. Relative pronouns include: ‘Who’ (a person or people) ‘Which’ (an object, a place or animals ...

The relative pronoun used depends on the person or type of thing you are writing about. Relative pronouns include: ‘Who’ (a person or people) ‘Which’ (an object, a place or animals ...