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Reading & WritingChapter 10: Form, Structure, and Sense

Notes

Plural vs Possessive Forms Notes

Distinguish ordinary plurals, possessives, and contractions by their function in context.

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Distinguish ordinary plurals, possessives, and contractions by their function in context. Form, Structure, and Sense questions ask which word form or sentence structure produces conventional, logical English in context.

Topic overview

Official alignment

Visual similarity is not enough: each candidate must supply the number, ownership, or verb phrase the sentence requires. This platform topic is an instructional subdivision of Standard English Conventions → Form, Structure, and Sense.

Grammar map

Form, structure, and sense checks

Form

Does the word or phrase have the number, tense, case, or verbal form required here?

Structure

Does the completed clause have the required subject, finite predicate, complement, and attachment?

Sense

Are time, reference, actor, ownership, and comparison relationships logical in context?

Current official competency frame

Form, Structure, and Sense testing points
CompetencyCore decisionTypical trap
Subject–verb agreementHead-subject number controls finite verb formNearest noun attraction
Pronoun–antecedent agreementActual antecedent controls number and personFalse nearest antecedent
Verb finitenessSyntactic slot controls finite or nonfinite formParticiple with no finite predicate
Verb tense and aspectTimeline controls formCopying a nearby tense
Subject–modifier placementModifier attaches to its logical targetDangling or misplaced actor
Genitives and pluralsNumber and ownership control noun formApostrophe as plural marker

SAT grammar strategy

Six-step full-substitution method

  1. Step 1

    Read the whole context and identify the intended meaning.

  2. Step 2

    Find the blank's grammatical job.

  3. Step 3

    Map the controlling subject, antecedent, timeline, modifier target, or owner.

  4. Step 4

    Predict the required form before comparing options.

  5. Step 5

    Insert every complete answer choice into the full text.

  6. Step 6

    Confirm exactly one choice satisfies grammar, usage, and logical sense.

Worked examples

Worked example

Worked example 1

The archive contains three _____ about the harbor.

Question: Which choice completes the text so that it conforms to the conventions of Standard English?

  1. report
  2. reports
  3. report's
  4. reports'
  1. Map

    ENTITY COUNT + GRAMMATICAL FUNCTION → FORM

  2. Decide

    Three requires a nonpossessive plural.

  3. Validate

    Substitute all four options and reject forms that fail the target convention.

B. reports

Why each choice works or fails

  1. This form does not satisfy the mapped grammatical requirement in the complete sentence.
  2. Three requires a nonpossessive plural.
  3. This form does not satisfy the mapped grammatical requirement in the complete sentence.
  4. This form does not satisfy the mapped grammatical requirement in the complete sentence.
Worked example

Worked example 2

The editors said _____ ready to publish.

Question: Which choice completes the text so that it conforms to the conventions of Standard English?

  1. their
  2. there
  3. they're
  4. theirs
  1. Map

    ENTITY COUNT + GRAMMATICAL FUNCTION → FORM

  2. Decide

    They're expands to they are and supplies the subject and verb.

  3. Sense check

    Reread the result for clause completeness and logical reference.

C. they're

Why each choice works or fails

  1. This option creates the wrong form, attachment, reference, time, or sentence structure.
  2. This option creates the wrong form, attachment, reference, time, or sentence structure.
  3. They're expands to they are and supplies the subject and verb.
  4. This option creates the wrong form, attachment, reference, time, or sentence structure.

Common traps

Difficulty progression

How the target becomes harder
LevelCommon structureResponse
FoundationNearby controller and visible targetName the controlling element
MediumIntervening phrases, multiple verbs, or plausible formsMap the syntactic slot and context
ChallengingEmbedded clauses, distant controllers, or competing relationshipsReduce to the core, then restore detail
Mini check

Mini check

Does an apostrophe mark an ordinary plural?

Show answer and explanation

Answer: No. It usually marks possession or omitted letters in a contraction.

Use the topic map and full-context method rather than a sound-only or memorized slogan.

Key takeaways

Key takeaways

What to remember

  • Context distinguishes singular, plural, possessive, contraction, and related determiner forms.
  • Ask whether the sentence expresses number, ownership, or a contracted verb phrase.
  • Find the grammatical controller before choosing a form.
  • Check structure and logical sense after checking form.
  • Every wrong option should fail for an identifiable reason.
  • Exactly one offered option must work in the full context.
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Put these notes into practice

Apply the ideas with SAT-style questions, then reinforce key details with flashcards.