2.2 Grammar, Usage & Mechanics

Key Takeaways

  • The written exam tests standard edited American English grammar through sentence-correction and error-identification items.
  • Common targets include subject-verb agreement, pronoun-antecedent agreement, parallel structure, verb tense consistency, and modifier placement.
  • Commonly confused word pairs (its/it's, affect/effect, principal/principle, fewer/less) appear as usage distractors.
  • Punctuation and mechanics — comma splices, run-ons, apostrophes, and semicolons — are tested because they change legal meaning.
  • Error-identification items ask you to find the one underlined-style segment containing an error or to select the best-corrected version of a sentence.
Last updated: May 2026

Why Grammar Is Scored, Not Assumed

Within the English Language Proficiency domain (about 25% of the written exam), grammar, usage, and mechanics are tested directly. The exam uses two recurring item styles drawn from standardized-test conventions:

  1. Error identification — a sentence is shown with several segments; you choose the one segment that contains a grammatical error, or choose "No error."
  2. Sentence correction — a sentence (or part of it) is shown; you choose the answer that fixes the error while preserving the original meaning most clearly and concisely.

Grammar is scored because syntax carries legal meaning. A misplaced modifier or an ambiguous pronoun can change who did what to whom — unacceptable in a sworn record. An interpreter who cannot parse standard English at speed will mis-render the structure even if individual words are known.

The High-Frequency Targets

CategoryWhat is testedQuick check
Subject-verb agreementVerb matches subject in numberFind the true subject, ignore intervening phrases
Pronoun-antecedentPronoun matches its noun in number/genderEach pronoun must have one clear antecedent
Parallel structureItems in a series share grammatical formLists and comparisons must match form
Verb tenseConsistent, logical sequence of tensesWatch unjustified tense shifts
Modifier placementModifiers sit next to what they modifyHunt dangling/misplaced modifiers
Pronoun caseSubject vs. object vs. possessive"who/whom," "I/me," "its/it's"

Agreement, Parallelism, and Modifiers

Subject-Verb Agreement

The verb must agree with the grammatical subject, even when words come between them. In "The list of exhibits is on the clerk's desk," the subject is list (singular), not exhibits. Collective nouns (jury, court) usually take a singular verb in American usage: "The jury has reached a verdict."

Pronoun-Antecedent Agreement

Every pronoun needs one unambiguous antecedent that matches in number. "Each juror must cast their vote" is widely accepted, but exam keys often expect "his or her vote" for strict agreement with the singular each.

Parallel Structure

Items joined in a series or comparison must share grammatical form. Faulty: "The witness was asked to remain calm, to tell the truth, and answering fully." Correct: "...to remain calm, to tell the truth, and to answer fully."

Modifier Placement

A dangling modifier has no logical word to attach to. Faulty: "Reviewing the file, the motion was denied." The file was not reviewed by the motion. Correct: "Reviewing the file, the judge denied the motion."

Commonly Confused Words and Usage

Usage items hinge on word pairs that sound alike or look alike but differ in function. The exam uses these as quiet distractors inside otherwise correct sentences, so you must spot the misuse, not just the meaning.

PairDistinctionCorrect example
its / it'spossessive vs. "it is/has"The court issued its ruling.
affect / effectusually verb vs. usually nounThe ruling will affect the effect of the statute.
principal / principlemain/chief vs. a ruleThe principal issue is a principle of due process.
fewer / lesscount nouns vs. mass nounsFewer jurors, less evidence.
who / whomsubject vs. objectWho testified? To whom was it addressed?
than / thencomparison vs. time/sequenceHe arrived later than noon, then left.
lay / lieplace something vs. reclineLay the file down; the witness will lie down.

A usage error in a charging document or instruction can be argued to change meaning, which is why the written exam treats these as substantive, not cosmetic.

Punctuation and Mechanics

Punctuation is tested because it changes legal meaning. A comma splice joins two independent clauses with only a comma; a run-on (fused sentence) joins them with no punctuation at all. Both are marked wrong on error-identification items. Correct options use a period, a semicolon, or a comma plus a coordinating conjunction.

  • Comma splice (wrong): "The defendant waived the right, the hearing proceeded."
  • Corrected: "The defendant waived the right**;** the hearing proceeded."
  • Restrictive vs. nonrestrictive: "Witnesses who lied were charged" (only the lying ones) versus "The witnesses**, who lied,** were charged" (all of them lied). The commas change the legal scope.
  • Apostrophes: "the juror**'s** notes" (one juror) versus "the jurors**'** notes" (several). Possession can identify a party, so placement matters.
  • Semicolons correctly link closely related independent clauses or separate list items that already contain commas.

For sentence-correction items, prefer the answer that is grammatically correct, unambiguous, and concise, and that does not change the original meaning. An option can be grammatically clean yet still wrong if it alters who did what.

Test Your Knowledge

Identify the grammatical error: "The list of approved interpreters were posted outside the courtroom."

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Test Your Knowledge

Which revision best corrects this sentence while preserving meaning: "Reviewing the transcript, the objection was sustained"?

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Test Your Knowledge

Choose the sentence that uses commonly confused words correctly.

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Test Your Knowledge

Which sentence is punctuated to mean that ALL of the jurors were dismissed?

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