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Hong KongFTCE Semicolons, Colons, and Dashes: Rules
A semicolon joins two closely related independent clauses; a colon introduces a list or explanation after a complete clause; and a dash sets off an interruption or sharp aside.
- Before using a semicolon, check that both sides can stand as sentences.
On this page7 sections
Three marks that people use interchangeably and the exam does not.
One test each
| Mark | Job | Test |
|---|---|---|
| Semicolon | Joins two independent clauses | Could a period go here? If yes, a semicolon can |
| Colon | Introduces what follows | Is everything before it already a complete sentence? |
| Dash | Sets off an interruption or a sharp aside | Could commas or parentheses do the same job? |
The period test is a quick starting point: read each side of the proposed semicolon on its own. If each side can stand as a complete sentence and the ideas are closely related, the semicolon can join them. It creates a closer link than a period without requiring a coordinating conjunction.
Joining two independent clauses
An independent clause has a subject and a complete predicate and can stand alone. “The class reviewed the passage; the instructor explained the inference” is correct because each half is a complete thought. By contrast, “The class reviewed the passage; explaining the inference” is incorrect: the words after the semicolon are not an independent clause.
| Construction | Example | Why |
|---|---|---|
| Independent clause; independent clause | The bell rang; the students left. | Both sides can stand as sentences. |
| Dependent clause; independent clause | Although the bell rang; the students left. | The opening clause cannot stand alone. |
| Independent clause; phrase | The students left; gathering their books. | The second part is a phrase, not a complete clause. |
| Comma splice | The bell rang, the students left. | A comma alone does not join two independent clauses. |
To repair a comma splice, use a period, a semicolon, a comma plus a coordinating conjunction, or a properly structured dependent clause. Choose the option that preserves the relationship between the ideas.
Semicolons with conjunctive adverbs
A conjunctive adverb such as however, therefore, consequently, or nevertheless does not join clauses by itself. When it links independent clauses, place a semicolon before the adverb and usually a comma after it: “The evidence was incomplete; therefore, the writer qualified the claim.” Both clauses must still be complete.
The colon rule people break
What comes before a colon has to be a complete sentence. That is the whole rule and it eliminates most wrong options instantly.
Wrong: "The materials needed are: pens, paper, and folders." The materials needed are is not a sentence.
Right: "You will need three things: pens, paper, and folders." You will need three things stands on its own.
This is the single most reliable punctuation check on the subtest. Cover everything after the colon and read what is left.
The semicolon in a complex list
There is a second use, and it is the one that turns up in test items about schedules and rosters. When the items in a list already contain commas, separate them with semicolons instead.
"The team includes Ms. Ruiz, sixth grade; Mr. Adler, seventh grade; and Ms. Chen, eighth grade." Commas inside the items, semicolons between them. Without that, the sentence lists six things instead of three.
Which sentence is punctuated correctly?
- The workshop covered three areas: assessment, planning, and classroom management.
- The workshop covered: assessment, planning, and classroom management.
- The workshop covered three areas; assessment, planning, and classroom management.
- The workshop covered three areas, assessment, planning, and classroom management.
Dashes, briefly
A pair of dashes can replace a pair of commas around a nonessential element, and a single dash can introduce an abrupt addition at the end of a sentence. Both are correct English.
They are unlikely to be the focus of an item, because a dash is usually optional where a comma or a colon would also work, and a well-built question needs one defensible answer. If you see a dash in an option, check whether the sentence would be equally correct with commas. If it would, the dash is probably not what the question is about.
A word such as however does not make a dependent clause. Test whether both sides are complete sentences before choosing the punctuation.
What to actually memorize
- Semicolon equals period. Both sides must stand alone.
- Colon needs a complete sentence in front of it.
- Semicolons separate list items that already contain commas.
- A conjunctive adverb such as however takes a semicolon before and a comma after.
For a semicolon question, test whether both sides can stand alone, then decide whether the clauses are closely related. For a colon, check that the words before it form a complete sentence. For a complex list, use semicolons only when the items already contain commas. Apply the sentence structure first; use the punctuation mark that expresses the intended relationship.
Common questions
When do I use a semicolon instead of a comma?
When both sides of the join could stand as sentences. A comma alone between two independent clauses is a comma splice; a semicolon is one of the four legal fixes for it. The other three are a period, a comma plus a conjunction, and subordination.
What has to come before a colon?
A complete sentence. "You will need three things: pens, paper, and folders" is correct because the words before the colon stand alone. "The materials needed are: pens" is wrong, because that opening is not a sentence.
When do semicolons appear inside a list?
When the individual items already contain commas. Separating them with semicolons keeps the boundaries clear, so "Ms. Ruiz, sixth grade; Mr. Adler, seventh grade" reads as two people rather than four items.
How do I punctuate a conjunctive adverb between two clauses?
Use a semicolon before the adverb and usually a comma after it: "The evidence was incomplete; therefore, the writer qualified the claim." Confirm that both sides are independent clauses.
Are dashes tested on the FTCE?
Rarely as the focus of an item, because a dash is usually interchangeable with commas or a colon and a good question needs one defensible answer. Skill 11 covers standard punctuation generally, so a dash can appear inside an option without being the point.