Short on time? This page is the recap. For explanations and worked examples, use the full study guide.
Recap
- Grammar and mechanics that follow established conventions enable clear communication.
- On the exam, small errors typical of unrevised timed writing do not hurt; errors so frequent or serious that they interfere with communication do.
- Writers also use punctuation strategically to show relationships among ideas.
- Punctuation advances a purpose by clarifying, organising, emphasising, indicating purpose, supplementing information or contributing to tone.
Key relationships
| Mark | Job | Quick example |
|---|---|---|
| Comma | Organises parts of a sentence; cannot join two independent clauses alone | “When the vote closed, the council met.” |
| Colon | Points forward to an explanation, list or quotation after a complete clause | “Three groups suffered: staff, volunteers and students.” |
| Semicolon | Joins related independent clauses; separates items in a complex list | “The notice was small; nobody saw it.” |
| Dash | Emphatic break, interruption or addition | “Not for a week—for a year.” |
| Hyphen | Joins words into a modifier; prevents ambiguity | “a well-known report” |
| Parentheses | Quiet supplementary information | “The fee (which is optional) rose.” |
| Quotation marks | Words quoted; a word used in a special or ironic sense | “the so-called experts” |
| End marks | Close a sentence and set its tone | “?” engages; “!” sparingly |
Errors that block meaning
- Comma splice: two independent clauses with only a comma.
- Run-on: two independent clauses with no punctuation.
- Fragment: a dependent clause alone.
- Unclear pronoun reference.
- Misused apostrophe (its and it’s; plural and possessive).
- Misplaced modifier (see Topic 8.6).
Public-domain anchors
- Lincoln (1863): “we can not dedicate—we can not consecrate—we can not hallow—this ground.” The dashes delay each verb and the object, making the climb audible.
- Lincoln (1865): “Fondly do we hope—fervently do we pray—that this mighty scourge of war may speedily pass away.” The dashes give a prayer-like rhythm.
Worked mini-example
Sentence (Marlbridge): “The test had one rule: no talking. Break it—and you were out.”
- The colon points forward, so the rule arrives as an announcement.
- The full stop gives the rule a moment of silence.
- The dash makes the reader pause before the consequence, so “and you were out” lands with force.
Analysis sentence: “The writer uses a dash to delay the consequence, so the reader experiences the same pause as a student about to be told off, which makes the rule feel strict.”
Editing check: “The test had one rule, no talking, break it and you were out.” contains two comma splices; the original punctuation fixes them and adds purpose.
Mistakes to avoid
- Naming the mark without the effect in an analysis.
- Using a colon after an incomplete clause (“The groups were: …”).
- Treating a semicolon as a comma.
- Overusing dashes or exclamation marks, so that they stop standing out.
- Proofreading the source when asked to explain it.
- Ignoring ambiguity: a missing hyphen or comma can change the meaning.
Quick self-check
- Correct: “The vote was close, the council delayed.” (Use a semicolon, a full stop or “so”: “The vote was close, so the council delayed.”)
- Which mark points forward to an explanation? (The colon.)
- What difference in effect is there between a dash and parentheses around an aside? (A dash draws attention to the aside; parentheses play it down.)
Next: practice questions.