Apostrophes: Contractions, Singular Possession, Plural Possession, and Practice Analysis

Core Principles and Graphic Nature of Apostrophes

• Visual form:
  • An apostrophe resembles a comma in shape, but it is situated high above the baseline rather than resting at the bottom of the line.
• Scope of use:
  • Apostrophes serve exactly two grammatical purposes in English:
  • Indicating contractions (omission of letters or sounds).
  • Signaling noun possession (ownership or direct association).
• Standard error warnings:
  • Commas and apostrophes represent the most common grammatical error areas encountered by students taking the GED examination.

Apostrophe Usage in Contractions

• Definition:
  • A contraction is a shortened form of a word or a group of words that omits certain letters or sounds.
  • In every contraction, the apostrophe physically occupies the exact position where letters have been removed.
• Grammatical composition:
  • The most frequent contractions consist of verbs, auxiliaries, or modal auxiliary verbs joined to other words.
• Exemplars and mechanics:
  • he would contracts to he'd (the apostrophe replaces the omitted letters w-o-u-l).
  • I have contracts to I've (the apostrophe replaces h-a).
  • they are contracts to they're (spelled t-h-e-y-'-r-e, replacing a).
  • you cannot contracts to you can't (the apostrophe replaces n-o).
  • he is contracts to he's (the apostrophe replaces i).
  • Additional standard examples include he'll (from he will or he shall) and we're (from we are).

Rules for Indicating Possession

• Three fundamental possessive rules:
  • Singular noun possession:
  • Place the apostrophe before the $s$ ('s).
  • The singular base noun remains intact prior to the punctuation mark.
  • Example: The base noun dog is singular; the possessive form is the dog's leash.
  • Regular plural noun possession:
  • Regular plural nouns form by adding an $s$ to the singular form (e.g., dog becomes dogs).
  • To show possession for a regular plural noun ending in $s$, place the apostrophe directly after the existing $s$ (s').
  • Example: For multiple dogs possessing leashes, the form is the dogs' leashes.
  • Irregular plural noun possession:
  • Plural nouns that do not naturally end in $s$ follow the singular possessive pattern: add an apostrophe followed by an $s$ ('s).
  • Base irregular plurals must not be modified with a preliminary pluralizing $s$ (e.g., the form childrens is completely nonstandard and incorrect).
  • Example: The base word children is inherently plural; the possessive form is children's toys.
  • Example: The base word men is inherently plural; the possessive form is men's.

Distinguishing Plural Forms from Possessive Forms

• Simple plurals versus possessives:
  • A simple plural noun merely indicates a quantity greater than one; it possesses nothing and takes no apostrophe (e.g., pens, times, chocolates).
  • Adding an apostrophe to a simple plural noun is a major grammatical error.
  • When possession occurs, the noun indicating the possessor is typically followed immediately by the person, object, or concept being possessed (e.g., the girl's dress, the boy's...).
  • When a noun is followed by a verb (e.g., my brothers like to go), the noun functions strictly as a plural grammatical subject, not a possessive modifier.
• Inherent possessive pronouns:
  • Possessive pronouns inherently indicate ownership and never accept an apostrophe.
  • your shows possession without punctuation.
  • his shows possession inherently; constructions such as his's do not exist.
  • he's is strictly a contraction for he is, never a possessive pronoun.
  • their indicates plural possession without an apostrophe.

Practice Worksheet Solutions and Syntactic Analysis

• Item 1: This car is my car and that car is Tom's.
  • Selected option: Option C (Tom's).
  • Grammatical justification: Tom is a singular noun showing ownership of the implied car (Tom's car). The apostrophe is placed before the $s$.
• Item 2: We need some pens. Where are your pens?
  • Selected option: Option A (pens).
  • Grammatical justification: The sentence requires a simple plural count noun representing multiple writing instruments. The word your already establishes possession; the pens possess nothing.
• Item 3: Do these books belong to Alex? Are they his?
  • Selected option: Option C (his).
  • Grammatical justification: his is an inherent possessive pronoun. Substituting he's produces Are they he is?, which is syntactically invalid.
• Item 4: My brothers like to go swimming at a lake near our home.
  • Selected option: Option C (brothers).
  • Grammatical justification: brothers is a simple plural subject governing the verb like. The brothers do not possess the action of liking.
• Item 5: My brothers' favorite food is pizza. They both share one every week.
  • Selected option: Option B (brothers').
  • Grammatical justification: The pronoun they explicitly establishes that the subject consists of more than one brother (They both share). Because these multiple brothers possess a shared favorite food, the noun requires a regular plural possessive ending with the apostrophe after the $s$ (brothers').
• Item 6: How many times did you ride your bicycle last week?
  • Selected option: Option A (times).
  • Grammatical justification: times indicates numerical frequency and functions as a simple plural noun without any element of possession.
• Item 9: Monday was their last day to study before their test on Tuesday.
  • Selected option: day.
  • Grammatical justification: day is a singular noun without ownership. No apostrophe or pluralizing suffix is warranted.
• Item 10: How many chocolates did the children eat at the park?
  • Selected option: Option C (chocolates).
  • Grammatical justification: chocolates designates multiple candies; it is a simple plural count noun carrying no possessive relationship.
• Item 11: Robert's bicycle is broken, so he's going to take a bus to work today.
  • Selected option: Option A (Robert's).
  • Grammatical justification: A singular proper noun (Robert) possessing a bicycle requires an apostrophe before the $s$ (Robert's).
  • Syntactic structure analysis: This sentence is a compound sentence joined by a comma and the coordinating conjunction so. It also contains the contraction he's representing he is.
• Item 12: The students' teacher is standing at the front of their classroom.
  • Selected option: Option B (students').
  • Grammatical justification: The plural possessive pronoun clue their (their classroom) confirms that the noun refers to multiple students who possess the teacher, necessitating a plural possessive with the apostrophe after the $s$ (students'). If the pronoun were singular (his classroom), the correct form would be singular possessive (student's).
• Item 13: Next Thursday's English class will begin at $02{:}00$, not $03{:}00$.
  • Selected option: Option C (Thursday's).
  • Grammatical justification: A single calendar week contains exactly one Thursday. Plural forms (Thursdays or Thursdays') are illogical. The class is held on and belongs to that single Thursday, requiring singular possession with an apostrophe before the $s$ (Thursday's).
• Item 14: Children's toys.
  • Selected option: Option A (Children's).
  • Grammatical justification: children is an irregular plural noun that does not end in $s$. Possession is formed by appending 's. Appending an apostrophe after an added $s$ (as in childrens') is grammatically invalid.

GED Examination Mindset and Course Study Resources

• Test-day psychological framework:
  • Critical testing mindset: I was born for this moment. I did not come here to fail. I came here to win. My future is waiting for me in this moment.
• Module 7A instructional sequence:
  • Preceding topic: Module covered subject-verb agreement with video lessons and assignments.
  • Instructional video: A $5$-minute summary covering contractions (including he'll and we're) and possessive rules.
  • Apostrophe Rules Handout: Reference sheet containing rules and illustrative examples.
  • ASTEC portal tasks: Complete the instructional lesson first, followed by the assigned practice drills within Module $7$ / $7\text{A}$.

Questions & Discussion

• Question / Prompt: What is the first use of an apostrophe?
  • Response: A contraction is a shortened form of a word or a group of words that omits certain letters or sounds. In a contraction, an apostrophe represents missing letters. The most common contractions are made up of verbs, auxiliaries, or modals attached to other words.
• Question / Prompt: What is the contraction for they are?
  • Response: They're (t-h-e-y-'-r-e).
• Question / Prompt: What is the contraction for you cannot?
  • Response: Can't.
• Question / Prompt: How do you make a singular noun possessive, such as dog?
  • Response: With singular possession, put the apostrophe before the $s$: the dog's leash.
• Question / Prompt: How do you make a regular plural noun possessive, such as dogs?
  • Response: With plural possession, put the apostrophe after the $s$: the dogs' leashes.
• Question / Prompt: For item 1 (This car is my car and that car is... Tom's), is the answer A, B, or C?
  • Response: C. The apostrophe goes before the $s$ because it indicates singular ownership (Tom's car).
• Question / Prompt: For item 2 (We need some pens. Where are your...), is the answer A, B, or C?
  • Response: A. It is not possession; it is plural (more than one). Your already indicates possession, and pens do not own anything, so no apostrophe is used.
• Question / Prompt: For item 3 (Do these books belong to Alex? Are they...), is the answer A, B, or C?
  • Response: C (his). His is already possessive without an apostrophe. He's means he is, which makes no sense in the sentence.
• Question / Prompt: For item 4 (... like to go swimming at a lake near our home), what is the choice?
  • Response: Miss Delma said C (brothers). It is plural, not possessive, because the brothers do not own like.
• Question / Prompt: For item 5 (My ... favorite food is pizza. They both share one every week), which option is used?
  • Response: Participant opinions were split between A, B, and C. The correct answer is B (brothers'). Mohammed correctly identified B. The plural pronoun they indicates more than one brother, and their ownership of a favorite food requires plural possession (brothers').
• Question / Prompt: For item 6 (How many ... did you ride your bicycle last week?), what is the answer?
  • Response: A (times). It refers to multiple times (plural), not possession.
• Question / Prompt: For item 9 (Monday was their last ... to study before their test on Tuesday), what is the answer?
  • Response: Singular day without an apostrophe because no ownership exists.
• Question / Prompt: For item 10 (How many ... did the children eat at the park?), is it C?
  • Response: C (chocolates). It is simple plural, not possessive.
• Question / Prompt: For item 11 (... bicycle is broken, so he's going to take a bus to work today), what is the answer and what else is present in the sentence?
  • Response: A (Robert's). It represents singular possession of the bicycle. Additionally, he's is a contraction for he is, and the clause is joined by the coordinating conjunction so following a comma to make a compound sentence.
• Question / Prompt: For item 12 (The ... teacher is standing at the front of their classroom), is it singular, plural, singular possession, or plural possession?
  • Response: The answer is B (students'). The giveaway clue is the plural pronoun their. If the sentence had read front of his classroom, the answer would have been A (student's).
• Question / Prompt: For item 13 (Next ... English class will begin at 02:00, not 03:00), what do Alex and the group think?
  • Response: C (Thursday's). Alex and the group agreed on C. There is only one Thursday in a week, so plural forms (Thursdays or Thursdays') are illogical; the class belongs to that singular Thursday.
• Question / Prompt: For item 14 (... toys), what is the answer regarding irregular plurals?
  • Response: A (Children's). Children is already plural, so only an apostrophe and $s$ are added. A colloquial habit among family members (such as mothers or sisters saying childrens) is acknowledged, but childrens is grammatically incorrect.