5.3 Pronoun Case, Agreement, and Reference

Key Takeaways

  • Pronoun case is governed strictly by grammatical function: subjective case (I, he, she, we, they, who) for subjects and predicate nominatives, objective case (me, him, her, us, them, whom) for all objects, and possessive case (my, your, his, her, their, whose) for ownership and gerund modifiers.
  • The Isolation Test eliminates compound structural confusion by dropping the companion noun or pronoun to reveal the correct case required for the remaining pronoun.
  • The 'Who' versus 'Whom' distinction is resolved using the He/Him substitution method: substitute he/they for who (subjective) and him/them for whom (objective) within the specific dependent clause.
  • Pronouns must agree with their antecedents in number and gender; singular indefinite pronouns (each, everyone, neither, anyone) formally take singular pronouns (his or her, his, her) in standard written English.
  • Vague or broad pronoun references occur when pronouns like 'this,' 'that,' 'which,' or 'it' lack a specific antecedent noun; they must be revised by adding a summary noun or restructuring the sentence.
Last updated: August 2026

Pronoun Case, Agreement, and Reference

Pronouns are versatile grammatical tools that replace nouns to prevent tedious repetition. However, because pronouns must precisely match the syntactic roles and grammatical properties of the nouns they replace, they represent a significant source of errors on the HiSET Language Arts – Writing subtest.

HiSET pronoun questions test three core grammatical dimensions:

  1. Pronoun Case: Selecting the proper pronoun form based on its structural function in the clause (subject, object, or possessive).
  2. Pronoun-Antecedent Agreement: Ensuring that pronouns agree with their antecedent nouns in number, person, and gender.
  3. Pronoun Reference: Eliminating ambiguous, vague, or ungrounded pronouns that lack clear, specific noun antecedents.

1. The Three Pronoun Cases & The Master Case Grid

Pronoun case refers to the grammatical form a pronoun assumes depending on how it functions within a sentence. Standard English recognizes three primary cases:

+-----------------------------------------------------------------------------------------+
|                                 THE PRONOUN CASE GRID                                   |
|                                                                                         |
|   PERSON / NUMBER         SUBJECTIVE CASE          OBJECTIVE CASE         POSSESSIVE    |
|                           (Subject / Pred. Nom)    (Direct/Ind./Prep Obj) (Ownership)   |
|   -----------------------------------------------------------------------------------   |
|   1st Person Singular     I                        me                     my / mine     |
|   2nd Person Singular     you                      you                    your / yours  |
|   3rd Person Sing. (Masc) he                       him                    his           |
|   3rd Person Sing. (Fem)  she                      her                    her / hers    |
|   3rd Person Sing. (Neut) it                       it                     its           |
|   1st Person Plural       we                       us                     our / ours    |
|   2nd Person Plural       you                      you                    your / yours  |
|   3rd Person Plural       they                     them                   their / theirs|
|   Relative / Interrogative who / whoever           whom / whomever        whose         |
+-----------------------------------------------------------------------------------------+

Functional Rules for Each Case

  1. Subjective (Nominative) Case: Used when the pronoun performs the action of the verb ("She drafted the proposal") or functions as a predicate nominative following a linking verb ("The keynote speaker was he"; "It was they who organized the conference").
  2. Objective Case: Used when the pronoun receives the action of a transitive verb as a direct object ("The manager promoted him"), serves as an indirect object ("The director gave us the report"), or functions as the object of a preposition ("The award was presented to her").
  3. Possessive Case: Used to indicate ownership ("their strategy") and to modify gerunds (verbal nouns ending in -ing):
    • Correct: "The board appreciated his leading the committee." (The board appreciated the leading, which belonged to him; not "him leading").
    • Note on Its vs. It's: Its is the possessive pronoun ("The company expanded its facility"). It's is strictly a contraction for it is or it has.

2. Compound Structures & The Isolation Test

Pronoun errors frequently appear in compound structures where a pronoun is paired with a noun or another pronoun (e.g., "between you and I" or "the supervisor invited my colleague and I"). Test-takers often choose the subjective pronoun because it "sounds polite" or formal, creating a severe grammatical error.

+-----------------------------------------------------------------------------------------+
|                            THE PRONOUN ISOLATION TEST                                   |
|                                                                                         |
|   DRAFT SENTENCE:                                                                       |
|   "The department chairperson distributed the research guidelines                       |
|    to [Dr. Rodriguez and I / Dr. Rodriguez and me]."                                    |
|                                                                                         |
|   STEP 1: ISOLATE THE TARGET PRONOUN                                                    |
|           Temporarily cross out the companion noun ("Dr. Rodriguez") and the            |
|           coordinating conjunction ("and").                                             |
|                                                                                         |
|   STEP 2: TEST THE BARE PRONOUN AGAINST THE VERB OR PREPOSITION                         |
|           - Option A: "...distributed the guidelines to I."  --> (FAILS: Grammatically wrong) |
|           - Option B: "...distributed the guidelines to me." --> (PASSES: Objective case)    |
|                                                                                         |
|   STEP 3: REASSEMBLE THE COMPOUND PHRASE                                                |
|           "The department chairperson distributed the research guidelines               |
|            to Dr. Rodriguez and ME."                                                    |
+-----------------------------------------------------------------------------------------+

The Preposition Trap: "Between You and Me"

Prepositions (between, among, for, with, to, toward, except, behind) always take the objective case. The phrase "between you and I" is universally ungrammatical in standard written English; it must always be "between you and me."

Pronouns in Comparisons (Than or As)

When pronouns follow than or as in comparative clauses, an ellipsis (omitted verb) is present. To determine the correct pronoun case, mentally complete the unstated clause:

  • Sentence: "She has published more peer-reviewed papers than [he / him]."
    • Expansion: "...than he [has published]." $ ightarrow$ Subjective: he
  • Sentence: "The senior mentor praised the intern more than [I / me]."
    • Expansion A: "...more than the mentor praised me." $ ightarrow$ Objective: me
    • Expansion B: "...more than I [praised the intern]." $ ightarrow$ Subjective: I

3. The Who vs. Whom Decision System

The choice between who (subjective) and whom (objective) is one of the most reliable scoring opportunities on the HiSET Writing subtest. Use the He/Him Substitution Method to determine the correct relative pronoun instantly.

+-----------------------------------------------------------------------------------------+
|                           THE HE / HIM SUBSTITUTION METHOD                              |
|                                                                                         |
|   1. WHO  <---> HE / SHE / THEY   (Subjective Case: Performs the action)                |
|   2. WHOM <---> HIM / HER / THEM  (Objective Case: Receives the action or follows prep)|
|                                                                                         |
|   DECISION PROTOCOL:                                                                    |
|   Step 1: Isolate the dependent clause containing who/whom.                             |
|   Step 2: Rearrange the clause into standard Subject-Verb-Object word order.             |
|   Step 3: Substitute "he" or "him" into the pronoun slot:                               |
|           - If "HE" fits  --> Choose WHO                                                |
|           - If "HIM" fits --> Choose WHOM                                               |
+-----------------------------------------------------------------------------------------+

Step-by-Step Dependent Clause Walkthrough

Example 1: Object of a Verb

  • Draft: "The architect [who / whom] the city council hired designed the community center."
  • Step 1 (Isolate Clause): "[who / whom] the city council hired"
  • Step 2 (Rearrange): "The city council hired [who / whom]."
  • Step 3 (Substitute): "The city council hired him (not he)."
  • Conclusion: Because him fits, the correct pronoun is whom ("The architect whom the city council hired...").

Example 2: Subject of a Verb

  • Draft: "The physician [who / whom] conducted the surgical trial published the data."
  • Step 1 (Isolate Clause): "[who / whom] conducted the surgical trial"
  • Step 2 (Substitute): "He conducted the surgical trial (not him)."
  • Conclusion: Because he fits, the correct pronoun is who ("The physician who conducted the trial...").

The Whoever vs. Whomever Rule in Noun Clauses

When choosing between whoever and whomever, the pronoun's grammatical role inside its own subordinate clause takes precedence over any preposition preceding it:

  • Sentence: "The foundation will award the research grant to [whoever / whomever] submits the most compelling proposal."
  • Analysis: Even though the pronoun follows the preposition to, the pronoun acts as the subject of the subordinate verb submits ("he submits the proposal"). Therefore, the subjective form whoever is required.

4. Pronoun-Antecedent Agreement

An antecedent is the noun or noun phrase to which a pronoun refers. A pronoun must agree with its antecedent in number (singular vs. plural), person, and gender.

+-----------------------------------------------------------------------------------------+
|                        PRONOUN-ANTECEDENT NUMBER RULES                                  |
|                                                                                         |
|   SINGULAR INDEFINITE ANTECEDENTS:                                                      |
|   Each, Every, Everyone, Everybody, Someone, Somebody, Anyone, Anybody,                 |
|   No one, Nobody, Either, Neither, One.                                                 |
|                                                                                         |
|   FORMAL HISET STANDARD:                                                                |
|   Singular indefinite pronouns require SINGULAR possessive pronouns (his or her, its):  |
|   - Informal / Spoken: "Each of the nurses finished their shift." (DISCOURAGED ON HISET)|
|   - Formal Standard:   "Each of the nurses finished her or his shift." (TARGET)         |
|                                                                                         |
|   COMPOUND ANTECEDENTS:                                                                 |
|   - Joined by "and"  --> PLURAL PRONOUN:                                                |
|     "The lead auditor and the supervisor completed THEIR evaluation."                   |
|   - Joined by "or" / "nor" --> AGREES WITH NEARER ANTECEDENT:                          |
|     "Neither the supervisor nor the technicians brought THEIR equipment."              |
|     "Neither the technicians nor the supervisor brought HER equipment."                |
+-----------------------------------------------------------------------------------------+

5. Ambiguous, Vague, and Broad Pronoun References

A pronoun reference error occurs when a reader cannot immediately determine which specific noun the pronoun replaces. On the HiSET, these errors fall into three main categories:

+-----------------------------------------------------------------------------------------+
|                        THREE CATEGORIES OF REFERENCE ERRORS                             |
|                                                                                         |
|   1. AMBIGUOUS REFERENCE: Two or more plausible noun antecedents.                       |
|      - Flawed: "When the supervisor met with the employee, she seemed agitated."       |
|        (Who seemed agitated? The supervisor or the employee?)                          |
|      - Repair: "The supervisor seemed agitated when she met with the employee."        |
|                                                                                         |
|   2. BROAD / UNGROUNDED REFERENCE: Pronoun ("this", "that", "which", "it") refers to    |
|      an entire preceding clause or concept rather than a specific noun.                 |
|      - Flawed: "The company automated its inventory, which increased profit margins."  |
|      - Repair: "The company automated its inventory, a modernization that increased..." |
|                                                                                         |
|   3. IMPLIED / MISSING ANTECEDENT: Pronoun refers to an unstated or possessive noun.    |
|      - Flawed: "In Dr. Alvarez's article, he argues for environmental conservation."    |
|        ("He" cannot grammatically refer to the possessive adjective "Dr. Alvarez's")  |
|      - Repair: "In his article, Dr. Alvarez argues for environmental conservation."     |
+-----------------------------------------------------------------------------------------+

The Summary Noun Technique for Repairing Broad "This / Which"

Flawed Broad Pronoun SentenceDiagnostic ErrorTargeted Repair StrategyCorrected Revision
"The city expanded bus routes and lowered fares, which pleased local residents."Which vaguely modifies the entire preceding action rather than a specific noun.Insert a summary noun phrase with an appositive modifier."The city expanded bus routes and lowered fares, a policy decision that pleased local residents."
"The state legislature increased clean energy subsidies. This led to rapid solar development."Unattached demonstrative This functions as a vague pronoun.Attach a clarifying summary noun directly after This."The state legislature increased clean energy subsidies. This legislative incentive led to rapid solar development."
"Although the experiment failed, it taught the scientists valuable lessons."The pronoun it vaguely refers to the broad failure rather than a concrete entity.Restructure to name the specific experience or outcome."Although the initial trial failed, the setback taught the scientists valuable lessons."
Test Your Knowledge

Read the draft sentence below: During the final budget deliberations, the committee chairperson distributed copies of the revised financial forecast to [my colleague and me / my colleague and I / myself and my colleague / I and my colleague] for detailed review. Which phrase correctly completes the prepositional phrase in standard written English?

A
B
C
D
Test Your Knowledge

Read the excerpt below from a biographical profile: Dr. Elizabeth Blackwell, [who the medical faculty initially rejected / which the medical faculty initially rejected / whomever the medical faculty initially rejected / whom the medical faculty initially rejected] multiple times before granting admission, eventually graduated at the top of her class in 1849. Which relative pronoun construction correctly completes the non-essential clause?

A
B
C
D
Test Your Knowledge

Read the following draft sentence: The municipal transportation board eliminated curbside parking along the commercial corridor, which significantly reduced traffic congestion during peak morning hours. Which revision best eliminates the vague pronoun reference in standard written English?

A
B
C
D
Test Your Knowledge

Read the draft sentence below: Before leaving the laboratory at the conclusion of the evening shift, each of the research technicians must secure [their assigned workstation / their own assigned workstations / its assigned workstation / his or her assigned workstation] and log all experimental data. Which phrase correctly completes the sentence according to formal conventions of standard written English?

A
B
C
D