These questions ask you to spot or avoid a doubled referent inside a relative clause. The reliable method is to assign each clause role once and check whether two expressions point back to the same antecedent.
Audit the subject and object slots
Separate the main clause from the relative clause, then identify the relative clause's subject, verb and object. A relative form can itself fill the subject or object role. An omitted object form still leaves a meaningful gap linked to the antecedent. Once that link is present, an extra personal pronoun does not clarify the sentence; it assigns the same role twice.
| Clause pattern | One-role analysis |
|---|---|
| A subject relative | In the chef who prepared lunch, who is already the subject of prepared. Do not add he or she after it. |
| An expressed object relative | In the parcel that Mina opened, Mina is the subject and that represents the parcel as object. Do not add it after opened. |
| An omitted object relative | In the parcel Mina opened, the silent object gap still represents parcel. Adding it would duplicate that link. |
| An object of a stranded preposition | In the neighbour I spoke with, neighbour fills the gap after with. A personal pronoun after the preposition would repeat the referent. |
| A formal object form | Whom can fill one person-object role: the guest whom we invited. Formal wording does not create room for a second object pronoun. |
Try a substitution check when the structure is hard to see. Temporarily replace the whole relative construction with a simple clause about the antecedent, identify the single required subject or object, and then return to the relative form. The finished relative clause should represent that participant once, either visibly or through one object gap.
Why doubling can sound tempting
| Trap | How to reject it |
|---|---|
| It or them is added after an expressed object relative | The relative form already occupies the object's link to the antecedent. Check the verb's roles and remove the repeated object. |
| It or another object pronoun is added after a contact clause | A silent gap is still a grammatical position. Omission does not free that position for a second expression. |
| He, she or it follows a subject relative form | Who, which or that already performs the action in this pattern. The personal pronoun creates two subjects for one role. |
| Changing the relative form is treated as a cure for doubling | Switching between that and which does not remove a repeated object, and switching person forms does not remove a repeated subject. Fix the duplicated role itself. |
| The extra pronoun is kept because it seems to make the meaning clearer | Clarity comes from tracing the relative form or gap to its antecedent. Standard relative structure needs one expression for each clause role. |
Try it
Which sentence avoids repeating the woman as both a relative pronoun and a subject pronoun?
- The woman who she trained the team received an award.
- The woman who trained the team received an award.
- The woman that she trained the team received an award.
- The woman whom she trained the team received an award.
Complete the sentence with a defining object clause and no resumptive pronoun: The route ___ avoids the construction zone. Use exactly that, we, eventually, and chose in that order, with no added words.
Double-referent check: select all sentences that contain a resumptive-pronoun error.
- The contract we signed starts Monday.
- The boxes that I labelled them are upstairs.
- The report which arrived today is brief.
- The pilot who she landed the aircraft safely thanked the crew.