2.2 Pronoun-Antecedent Agreement, Case, Misplaced & Dangling Modifiers

Key Takeaways

  • A pronoun must agree with its antecedent in gender, number, and person; singular indefinite pronouns require singular pronouns.
  • Use subjective pronoun cases (I, he, she, we, they, who) for subjects and predicate nominatives; use objective cases (me, him, her, us, them, whom) for direct objects, indirect objects, and objects of prepositions.
  • Determine 'who' versus 'whom' by performing the substitution test: if the pronoun acts as 'he/she/they', use 'who'; if it acts as 'him/her/them', use 'whom'.
  • A misplaced modifier creates ambiguity because it is separated from the word it intends to modify; place modifiers as close as possible to their target words.
  • A dangling modifier occurs when an introductory participial phrase lacks a logical subject in the main clause; the actor performing the action must immediately follow the comma.
Last updated: July 2026

Pronoun-Antecedent Agreement, Case, Misplaced & Dangling Modifiers

Pronoun usage and modifier placement represent two of the most frequently tested areas in English grammar on college entrance examinations like the ACET. Test items evaluate your ability to identify vague pronoun references, correct case mismatches, select between who and whom, and repair sentences containing misplaced or dangling modifiers.


1. Pronoun-Antecedent Agreement (PAA)

A pronoun replaces a noun or another pronoun. The word that the pronoun replaces is called its antecedent. A pronoun must agree with its antecedent in number (singular or plural), gender (masculine, feminine, neuter), and person (first, second, third).

Indefinite Pronouns as Antecedents

In formal ACET grammar, singular indefinite pronouns (everyone, someone, anyone, no one, each, either, neither, body/one/thing compounds) require singular possessive pronouns (his, her, its, his or her).

  • Informal/Spoken: Everyone must hand in their assignment by noon.
  • Formal ACET Standard: Everyone must hand in his or her assignment by noon.
  • Plural Antecedents: Both of the researchers presented their findings at the symposium. (Both is plural).

Compound Antecedents

  • Antecedents joined by and take a plural pronoun: “Clarissa and Manuel submitted their application.”
  • Antecedents joined by or / nor (or either...or / neither...nor) take a pronoun agreeing with the nearer antecedent:
    • Neither the lead architect nor the project engineers completed their site inspection.
    • Neither the project engineers nor the lead architect completed her site inspection.

Ambiguous or Missing Antecedents

On the ACET, a pronoun must refer unambiguously to a specific, explicit noun antecedent. Avoid using it, this, which, or they without a clear antecedent.

  • Ambiguous: When Elena spoke to Beatrice, she seemed very upset. (Who was upset? Elena or Beatrice?)
  • Correction: Elena seemed very upset when she spoke to Beatrice. OR When speaking to Beatrice, Elena noticed that Beatrice seemed very upset.
  • Missing Antecedent: In the university handbook, it states that plagiarism results in expulsion.
  • Correction: The university handbook states that plagiarism results in expulsion.

2. Pronoun Case Mastery

Pronoun case indicates the grammatical function of a pronoun within a sentence. There are three cases: Subjective (Nominative), Objective, and Possessive.

CaseSingular PronounsPlural PronounsRelative PronounsPrimary Syntactic Function
SubjectiveI, you, he, she, itwe, you, theywho, whoeverSubject of verb; Predicate Nominative
Objectiveme, you, him, her, itus, you, themwhom, whomeverDirect object, Indirect object, Object of Preposition
Possessivemy, mine, your, yours, his, her, hers, itsour, ours, your, yours, their, theirswhoseShows ownership (Note: no apostrophes in possessive pronouns)

Common ACET Pronoun Case Traps

  1. Compound Objects: When a pronoun is part of a compound object, isolate the pronoun to test its case.
    • Incorrect: The department head awarded the research grant to Dr. Aris and I.
    • Test: The department head awarded the grant to I (Wrong!).
    • Correct: The department head awarded the research grant to Dr. Aris and me.
  2. Comparisons with Than or As: Words like than and as are conjunctions introducing ellipted (shortened) clauses. Complete the clause mentally.
    • Incorrect: She is much more experienced in data analysis than him.
    • Test: ...than he [is].
    • Correct: She is much more experienced in data analysis than he.
  3. Predicate Nominatives: Following linking verbs (be, am, is, are, was, were, been), use the subjective case.
    • It was she (not her) who authored the breakthrough paper.

The Who vs. Whom Rule

  • Use who when the pronoun acts as the subject of a clause (he/she/they test).
  • Use whom when the pronoun acts as an object (him/her/them test).

Diagnostic Method:

Sentence: The professor [who/whom] the committee selected received an award.

  1. Isolate the relative clause: the committee selected [who/whom]
  2. Rearrange into standard S-V-O order: The committee selected him.
  3. Since him (objective) fits, use whom. Result: The professor whom the committee selected received an award.

3. Misplaced and Dangling Modifiers

A modifier is a word, phrase, or clause that describes another element in the sentence. Modifiers must be placed logically so that readers know exactly which word is being described.

Misplaced Modifiers

A misplaced modifier is positioned too far from the word it modifies, creating confusion or unintentionally comical meanings.

  • Misplaced: The librarian served cold drinks to the students wrapped in paper cups.
  • Analysis: Were the students wrapped in paper cups? No, the drinks were.
  • Correct: The librarian served cold drinks wrapped in paper cups to the students.

Limiting Adverbs: Words like only, almost, nearly, just, hardly, merely must be placed immediately before the word they modify.

  • She only ate the salad. (She did nothing else to the salad except eat it).
  • She ate only the salad. (The salad was the single item she ate).

Dangling Modifiers

A dangling modifier occurs when an introductory modifying phrase (usually a participial or infinitive phrase) does not logically modify the subject following the comma.

  • Dangling: After walking for three hours in the scorching sun, the mountain summit was finally reached.
  • Analysis: Who walked for three hours? The mountain summit did not walk!
  • Rule: The agent performing the action in the introductory phrase must be the grammatical subject immediately following the comma.
  • Correct Option A: After walking for three hours in the scorching sun, the hikers finally reached the mountain summit.
  • Correct Option B: After the hikers had walked for three hours in the scorching sun, the mountain summit was finally reached.
Test Your Knowledge

Which of the following options correctly fills the blanks in standard formal English? 'The scholarship donor, regarding ________ the committee had heard glowing recommendations, personally congratulated the candidate ________ scored highest on the exam.'

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B
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D
Test Your Knowledge

Identify the sentence that is free of misplaced or dangling modifiers.

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B
C
D
Test Your Knowledge

Choose the sentence that complies fully with formal pronoun-antecedent agreement rules.

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B
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D