8.4 Form, Structure, and Sense: Pronouns, Modifiers, and Possession
Key Takeaways
- A pronoun must match its antecedent in number and must point to one clear noun; if two nouns could be she or they, rewrite.
- It's means it is; its shows possession. They're means they are; their shows possession; there points to a place or starts there is/are.
- Who is the subject form; whom is the object form—try he/him substitution, and keep the test at grade 8–9 (no nested whoever puzzles).
- Place a modifier next to the word it describes; after an -ing opener, the next noun must be the person or thing doing that action.
- Apostrophes mark possession (student's, students') or contractions (it's), not simple plurals (students, vials, 1990s).
Verbs are only half of Form, Structure, and Sense. This section covers pronouns, modifier placement, and possessive apostrophes—the other usage decisions that show up when choices swap words rather than punctuation. The stem is still Which choice completes the text so that it conforms to the conventions of Standard English? Standard English Conventions as a whole is 11–15 operational questions on the PSAT 8/9; you will not be told whether an item is Boundaries or this skill. Read the options. If they say its/it's or move an -ing phrase, you are here.
This independent OpenExamPrep lesson helps 8th and 9th graders study those conventions for the PSAT 8/9. OpenExamPrep is not a College Board partner and does not claim official approval, review, partnership, or exact equivalence with College Board materials. For verb number and tense, use 8.3. For comma splices around extra information, use 8.2.
Pronouns need a clear, matching antecedent
An antecedent is the noun a pronoun stands for. Two jobs: match number, and point to one obvious noun.
Number:
Each seedling lost its first leaves. The seedlings lost their first leaves.
Each seedling is singular → its. The seedlings is plural → their. Collective nouns follow the same habit as verbs: The club presented its design (one unit), not their design, unless the sentence has recast the idea as members.
Clarity:
When Maya handed Jordan the flash drive, she smiled.
Who smiled? Maya or Jordan? Both are possible. Standard English on this test prefers a rewrite that names the smiler:
Maya smiled when she handed Jordan the flash drive.
If a choice keeps a foggy she, he, it, or they that could attach to two nouns, it is not the convention-legal completion—even if the grammar of number is fine.
Do not let a pronoun float with no noun on screen. They say the cooler failed is fine in conversation. On an editing item, they needs a named group in the sentence (The rangers say...).
Its / it's and their / there / they're
These are not style choices. They are different words.
| Form | Job | Memory check |
|---|---|---|
| it's | contraction of it is or it has | Read the sentence with it is. If it works, use it's. |
| its | possession by it | The tortoise and its shell. Never its'. |
| they're | contraction of they are | Read they are. |
| their | possession by them | Their notebooks. |
| there | a place, or the opener in there is/are | Over there; there are three vials. |
The tortoise pulled into its shell when the classroom door slammed.
It is shell is nonsense, so it's is wrong. Its' is not a Standard English word.
The partners stored their notebooks over there because they're meeting in the lab after lunch.
All three there/their/they're forms can appear in one short text. Test each blank with the memory check; do not pick the spelling that "looks more academic."
A cousin pair: who's = who is; whose = possession. Who's bringing the cooler? versus Whose cooler is this?
Who versus whom (grade 8–9 only)
Keep this skill inside a substitution test. Do not chase rare nested clauses.
- Who = subject form. Substitute he or she. If he fits, use who.
- Whom = object form. Substitute him or her. If him fits, use whom.
Who submitted the permission form? (He submitted it → who.) Whom did the counselor call? (The counselor called him → whom.) The student who submitted the form left early. (He submitted → who is the subject of submitted.) The student whom the counselor called left early. (The counselor called him → whom is the object.)
After a preposition, object form is the clean case: to whom, for whom. To who is the trap.
If a sentence would sound unnatural even when whom is technically right, a rewrite is also convention-legal in real writing: the counselor called the student. On a four-choice item, pick the option that passes the he/him test. You will not need SAT-hard whoever/whomever puzzles for PSAT 8/9 study on OpenExamPrep.
Modifier placement: dangling and misplaced
A modifier is a word or phrase that describes something else. It should sit next to the thing it describes.
Misplaced modifiers attach to the wrong neighbor:
Maya served sandwiches to the guests on paper plates.
Are the guests standing on paper plates? Move the phrase: Maya served the guests sandwiches on paper plates.
Small words cause big misses: Maya almost ate all the samples (she came close to eating, but maybe ate none) versus Maya ate almost all the samples (she ate most of them). Place almost, only, and just next to the word they actually limit.
Dangling modifiers, especially -ing or to- openers, describe a doer that is missing from the next slot:
Walking across the stage, the trophy gleamed under the lights.
The noun right after the comma is trophy. Trophies do not walk. Legal rewrite:
Walking across the stage, Maya reached for the trophy that gleamed under the lights.
The opener Walking across the stage now meets Maya, the walker.
Same test for purpose phrases:
To win the showcase, the code had to be finished.
Code does not try to win. To win the showcase, the team had to finish the code.
On choices, read the comma after an opener and demand that the next noun be able to do the -ing action. If it cannot, the choice dangles no matter how polished the rest of the sentence sounds.
Plural versus possessive apostrophes
Apostrophes do not make ordinary plurals. Vials, students, 1990s, and CDs take no apostrophe just to mean more than one.
Possession does take an apostrophe:
| Meaning | Form | Example |
|---|---|---|
| One owner | apostrophe + s | the student's notebook |
| More than one owner, plural already ending in s | apostrophe after the s | both students' notebooks |
| Singular noun ending in s (keep it simple) | apostrophe + s | the class's vote |
| Possession by it | its, no apostrophe | its shell |
Both students' lab notebooks included the same control-group data from the bean plants.
Both tells you there is more than one student. Student's would be one owner and would clash with both. Students without an apostrophe would be a plural noun sitting where a possessive is required (students lab notebooks is missing the ownership mark). Student is the wrong number.
Do not write its' ever. Do not write vial's when you mean several vials. Do not use an apostrophe to make a last name plural on a poster (the Chens, not the Chen's)—and if an item is about possession by a family, the Chens' greenhouse (plural owners) is the form.
Worked item: its versus it's
The tortoise pulled into _______ shell when the classroom door slammed.
Read it is shell—impossible. Possession: its. It's is the contraction. Its' is not a word. It leaves shell without an owner word.
Worked item: dangling opener
Walking across the stage, _______
The blank must begin with the walker. Maya reached for the trophy that gleamed under the lights works. the trophy gleamed... makes the trophy walk. the lights gleamed... makes the lights walk. the audience went silent... makes the audience the walker unless the sentence actually puts the audience on the stage as the one walking—which it does not in the trap versions.
Worked item: who / whom
The counselor called the student _______ had forgotten a permission form.
The blank is the subject of had forgotten. He had forgotten → who. Whom had forgotten fails the him test: you would not say him had forgotten.
Flip it: The student whom the counselor had called... because the counselor had called him.
How to use this in a module
Pronoun and modifier items can look like vocabulary because the options are small words. Slow down. Name the antecedent. Name the walker after an -ing comma. Expand it's to it is every time. Those three habits beat rereading the science content.
Conventions is still easiest-to-hardest inside the cluster, mixed across skills. A late item might combine a possessive with a nearby plural decoy (students/student's/students'). Cover the sentence, decide "one owner or many," then look.
Which choice completes the text so that it conforms to the conventions of Standard English? The tortoise pulled into _______ shell when the classroom door slammed.
Which choice completes the text so that it conforms to the conventions of Standard English? Walking across the stage, _______
Which choice completes the text so that it conforms to the conventions of Standard English? Both _______ lab notebooks included the same control-group data from the bean plants.