United States
Hong KongFragments, comma splices and run-on sentences
The rule puts fragments, comma splices, run-on sentences and syntax errors in a single skill under Competency 1 of subtest 826. Three of the four are the same question: where does one independent clause stop. Learn the four legal ways to join two clauses and most of these items become mechanical.
Grouping these together is the state's choice, not ours. Skill 3 under Knowledge of language structure reads "Apply knowledge of a variety of effective structures (e.g., recognizing fragments, comma splices, run-on sentences, syntax errors)". Four names, one skill, and there is a reason they travel together.
Everything turns on the independent clause
An independent clause has a subject and a finite verb and can stand alone. That is the unit the whole skill is built around.
| Error | What went wrong | Fix |
|---|---|---|
| Fragment | Less than one independent clause | Attach it, or supply the missing subject or verb |
| Comma splice | Two independent clauses joined by a comma | Any of the four legal joins below |
| Run-on (fused) | Two independent clauses joined by nothing | Any of the four legal joins below |
| Syntax error | The words are in an order English does not allow | Rebuild the clause |
Look at rows two and three. Same diagnosis, same repair kit. The only difference is whether there is a comma sitting in the wrong place or nothing sitting there at all.
The four legal joins
- Period. Two sentences.
- Semicolon, when the two clauses are closely related.
- Comma plus a coordinating conjunction: and, but, or, nor, for, so, yet.
- Subordinate one of them: because, although, when, if, since, while.
On a multiple-choice item you will usually be offered two or three of these and asked which produces a correct sentence. All of them are correct English, so the question is choosing the one that fits the relationship between the clauses. If the second clause explains the first, a semicolon or because reads better than and.
However, therefore, consequently, nevertheless and thus are adverbs, not conjunctions. "The data was clear, however the committee disagreed" is a comma splice, and it is the most common one on any grammar test. Put a semicolon before however and a comma after it, or start a new sentence.
The three fragment shapes
Fragments look different from splices, and the exam draws on three shapes.
- Subordinate clause alone: "Although the results improved." The although makes it dependent, so it cannot stand by itself.
- Participial phrase alone: "Running through the corridor with a stack of folders." No finite verb.
- Appositive or example alone: "For instance, the third-grade cohort." No verb at all.
The check is the same each time. Read the string on its own and ask whether it makes a claim. "Although the results improved" does not; it leaves you waiting.
Which option corrects the sentence? The workshop ran over by twenty minutes, therefore the second session started late.
- minutes, and therefore the second session
- minutes therefore the second session
- minutes; therefore, the second session
- minutes, therefore; the second session
If you have just failed this subtest
This is the topic worth checking first. Clause-boundary errors are the single most drillable thing on the English Language Skills subtest, and they overlap with the punctuation skill under Competency 3, so time here pays twice.
The published data supports going back. English Language Skills passed 68% of first-attempt candidates in 2025 and 83% at best attempt, a 15-point gain, which is the joint-largest improvement of the four subtests. People who come back mostly pass. A retake is USD 32.50 and at least thirty days.
What we cannot tell you
How many of the 30 questions this skill carries. FLDOE publishes the subtest total and nothing under it. Our estimate puts the whole language-structure competency at about six questions, spread across four skills, and that estimate is arithmetic on the number of skills the rule states rather than anything the state has published.
Common questions
What is a comma splice?
Two independent clauses joined by a comma with no conjunction. "The data was clear, the committee disagreed." Section 82 names comma splices explicitly in the skill on effective structures, so the term itself can appear in a question stem.
How do I fix a run-on sentence?
Four options: split it with a period, join with a semicolon, add a comma plus one of the seven coordinating conjunctions, or subordinate one clause with a word like because or although. All four are correct, so pick the one that matches the relationship between the clauses.
Is however a conjunction?
No, it is a conjunctive adverb, and treating it as a conjunction produces the most common comma splice in English. Use a semicolon before it and a comma after it when it joins two independent clauses, or start a new sentence with it.
How do I recognize a fragment?
Read the string on its own and ask whether it makes a claim. A subordinate clause, a participial phrase or a bare appositive will leave you waiting for the rest. If there is no finite verb, or a subordinator has made the clause dependent, it is a fragment.