5.1 Office Grammar and Punctuation

Key Takeaways

  • Prepositional and parenthetical phrases intervening between a subject and its verb do not alter the grammatical number of the subject.
  • Compound subjects joined by the conjunctions 'and' take plural verbs, whereas subjects joined by 'or' or 'nor' follow the rule of proximity.
  • The Oxford comma is the final comma placed before the coordinating conjunction in a list of three or more items to prevent ambiguity.
  • A run-on sentence, whether a fused sentence or a comma splice, must be resolved using punctuation, coordinating conjunctions, or subordinating conjunctions.
Last updated: July 2026

Office Grammar and Punctuation

In public administration, written correspondence represents the professional standards of the government agency. Grammatical errors or punctuation mistakes can obscure critical regulatory information, create legal ambiguities, and damage public trust. Civil service exams test a candidate’s ability to recognize and correct common grammar and punctuation errors. This section details key grammar principles highly tested on clerical examinations.

Subject-Verb Agreement

The foundational rule of subject-verb agreement is that a singular subject requires a singular verb, and a plural subject requires a plural verb. While simple sentences are straightforward, exam questions introduce complexities to test your attention to detail.

Intervening Phrases

A common exam trap is inserting prepositional or parenthetical phrases between the subject and the verb. These intervening phrases often contain nouns of a different number than the subject, tempting test-takers to match the verb to the nearest noun.

  • Incorrect: "The stack of confidential files, containing sensitive tax records and municipal audit documents, are on the desk."
  • Correct: "The stack of confidential files, containing sensitive tax records and municipal audit documents, is on the desk." Here, the subject is the singular noun stack, not the plural nouns files or documents. The prepositional phrases are modifiers and do not alter the subject's number.

Compound Subjects

Compound subjects joined by the coordinating conjunction and take a plural verb:

  • Example: "The receptionist and the administrative assistant are attending the seminar." However, when subjects are joined by or, nor, either/or, or neither/nor, the verb must agree with the part of the subject closest to it (the rule of proximity):
  • Example: "Neither the department head nor the clerks write the daily logs." (Plural verb matches "clerks")
  • Example: "Neither the clerks nor the department head writes the daily logs." (Singular verb matches "department head")

Indefinite Pronouns

Indefinite pronouns do not refer to a specific entity. Some are always singular, others are always plural, and some depend on the context of the sentence:

  • Always Singular: Each, either, neither, one, everyone, everybody, someone, somebody, anyone, anybody, no one, nobody.
    • Incorrect: "Each of the applicants have submitted their resume."
    • Correct: "Each of the applicants has submitted their resume."
  • Always Plural: Both, few, many, several.
    • Correct: "Several of the analysts were present at the budget hearing."
  • Variable: All, any, more, most, none, some. Use the noun in the prepositional phrase to determine the number.
    • Correct: "Most of the information is correct." (Information is singular)
    • Correct: "Most of the reports are complete." (Reports is plural)

Collective Nouns in Subject-Verb Agreement

Collective nouns (such as team, staff, audience, committee) represent a group of individuals. In American English, collective nouns are typically treated as singular because they operate as a single unit.

  • Correct: "The administrative staff is meeting in the conference room." However, if the members of the group are acting individually, the noun takes a plural verb.
  • Correct: "The staff have argued about the new office policies for hours." (To avoid awkwardness, writers often insert the word members: "The staff members have argued...")

Pronoun-Antecedent Agreement

A pronoun must agree in number and gender with its antecedent (the noun it replaces). In civil service exams, look out for collective nouns acting as antecedents. If the collective noun acts as a single, unified entity, the pronoun must be singular:

  • Example: "The board of directors issued its final decision on Tuesday." If the members of the group act individually, the pronoun is plural:
  • Example: "The committee members voiced their opinions during the open forum." Additionally, singular indefinite pronouns (such as everybody or someone) require singular pronouns:
  • Incorrect: "If a resident wishes to register a complaint, they must submit their form."
  • Correct (Traditional/Formal): "If a resident wishes to register a complaint, he or she must submit his or her form."
  • Correct (Plural Rewrite): "If residents wish to register a complaint, they must submit their forms."

Active vs. Passive Voice

Voice refers to the relationship between the subject and the action of the verb.

  • Active Voice: The subject performs the action.
    • Example: "Officer Martinez filed the citation."
  • Passive Voice: The subject receives the action.
    • Example: "The citation was filed by Officer Martinez."

In public administration, active voice is preferred because it establishes clear accountability (who performed the action) and is more concise. Passive voice often conceals the actor, which is problematic in government records:

  • Passive (Vague): "A mistake was made in the payroll calculation."
  • Active (Clear): "The accounting department made a mistake in the payroll calculation."

Comma Placement and Semicolons

Punctuation rules ensure sentences are readable and free of ambiguity.

Comma Placement in Lists (The Oxford Comma)

The Oxford (or serial) comma is the final comma in a list of three or more items, placed immediately before the coordinating conjunction (and or or).

  • Ambiguous: "The governor thanked the administrative assistants, Abraham Lincoln and George Washington." (This could imply the assistants are Lincoln and Washington).
  • Clear: "The governor thanked the administrative assistants, Abraham Lincoln, and George Washington." Using the Oxford comma is standard practice in government writing to prevent ambiguity.

Commas with Coordinate Adjectives

Coordinate adjectives are two or more adjectives that modify the same noun equally. You must separate them with a comma if they can be reversed in order, or if you can insert the word and between them.

  • Correct: "The clerk filled out the detailed, repetitive form."
  • Incorrect: "The department purchased a new, metal filing cabinet." (You cannot say "metal new filing cabinet" or "new and metal filing cabinet." These are cumulative adjectives and should not be separated by a comma).

Semicolons

Semicolons are used in two specific scenarios:

  1. Connecting Independent Clauses: Use a semicolon to link two independent clauses that are closely related in thought, without using a coordinating conjunction.
    • Correct: "The morning mail has arrived; the afternoon delivery is scheduled for 3:00 p.m."
  2. Lists with Internal Punctuation: Use semicolons to separate items in a list when the items themselves contain commas.
    • Correct: "The representatives present were Sarah Jenkins, Director of Operations; Michael Chang, Chief Financial Officer; and David Ross, Human Resources Manager."

Run-On Sentences

A run-on sentence occurs when two or more independent clauses are joined incorrectly.

  • Fused Sentence: Joining clauses with no punctuation.
    • Example: "The scanner is broken we need to call a technician."
  • Comma Splice: Joining clauses with only a comma.
    • Example: "The scanner is broken, we need to call a technician."

Methods to Correct Run-Ons

  1. Separate sentences: "The scanner is broken. We need to call a technician."
  2. Use a semicolon: "The scanner is broken; we need to call a technician."
  3. Use a comma and coordinating conjunction: "The scanner is broken, so we need to call a technician."
  4. Use a subordinating conjunction: "Because the scanner is broken, we need to call a technician."
Test Your Knowledge

Identify the sentence that contains a grammatical error.

A
B
C
D
Test Your Knowledge

Which of the following sentences is written in the active voice?

A
B
C
D
Test Your Knowledge

Choose the sentence that is punctuated correctly.

A
B
C
D