Identify sentence types in this grammar worksheet.
Worksheet titled "Sentence, Fragment, or Run-on" with 25 numbered sentences to identify as sentence, fragment, or run-on, featuring a table with columns for each category.
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Step-by-step solution for: Sentence, Fragment, or Run-on worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Sentence, Fragment, or Run-on worksheet
Let's go through each item and determine whether it is a Sentence, Fragment, or Run-on. Here's the breakdown with explanations:
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- Sentence: A complete thought with a subject and predicate, expressing a full idea.
- Fragment: Incomplete thought—lacks a subject, predicate, or both; cannot stand alone.
- Run-on: Two or more independent clauses joined incorrectly (no proper punctuation or conjunction).
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1. This position requires speaking, writing, and supervising skills.
→ Complete thought, subject + predicate.
✔ Sentence
2. This is not what I requested the color is too dark, and it's the wrong size.
→ Two independent clauses joined without proper punctuation. "This is not what I requested" and "the color is too dark, and it's the wrong size" are separate ideas run together.
✘ Run-on
3. It is important to spend time studying, however, rest and recreation are also important.
→ "However" is a conjunctive adverb. It should be preceded by a comma and followed by a comma. But here, it's in the middle without proper separation. This creates a comma splice — two independent clauses joined only by a comma.
✘ Run-on
4. After searching through a loose-leaf binder of old homework assignments.
→ Starts with a prepositional phrase, no main verb or subject. Incomplete.
✘ Fragment
5. Luna stood up.
→ Subject + verb, complete thought.
✔ Sentence
6. Then calmed down about the situation.
→ No subject ("then" is an adverb). Missing subject.
✘ Fragment
7. Mary, sitting on the edge of her chair and holding the puppy.
→ Descriptive phrase, but no verb. Not a complete sentence.
✘ Fragment
8. Go straight home, do not stop at your friend's house.
→ Two imperative sentences joined without proper punctuation. Should be separated by a period or semicolon.
✘ Run-on
9. Probably two to three hours, depending on how hard the task is.
→ No subject or verb. Just a phrase.
✘ Fragment
10. The test was rumored to be extremely difficult.
→ Subject + verb, complete thought.
✔ Sentence
11. Harry and Ron should have prepared better for their exam.
→ Subject + verb, complete thought.
✔ Sentence
12. Keegan watched the video for a moment and then went back to work.
→ One subject, compound verb. Correctly structured.
✔ Sentence
13. I like the way Judge Smith runs the courtroom because she has no trouble keeping order.
→ Complex sentence with subordinate clause. Complete thought.
✔ Sentence
14. First, they had to change then they had to run laps around the court.
→ Two independent clauses: "they had to change" and "they had to run laps". Joined without conjunction or punctuation.
✘ Run-on
15. Because the barking dog kept Jeremiah awake past three in the morning.
→ Starts with a subordinating conjunction ("because") but no main clause. Dependent clause only.
✘ Fragment
16. Either she will or she won't, don't ask me.
→ Two independent clauses: "Either she will or she won't" and "don't ask me". They are joined improperly.
✘ Run-on
17. At the beginning of the movie, but before the main character appeared.
→ Prepositional phrase + coordinating conjunction, no verb. Incomplete.
✘ Fragment
18. Will sneezed.
→ Subject "Will" + verb "sneezed"? Wait — "Will" is likely a name, but it’s spelled as a modal verb. If it's meant to be a name, it's correct. But "Will" as a name is acceptable. "Will sneezed" is grammatically incorrect — should be "Will sneezed" → actually, that's incorrect because "sneezed" is past tense, but "Will" as a name would need to be capitalized and the verb should be "sneezed" (correct form). Wait: "Will sneezed" is not grammatically correct — it should be "Will sneezed" → no, that's fine if "Will" is a name. Actually, “Will sneezed” is correct? Let’s check.
Wait — “Will” is a name, so “Will sneezed” is grammatically incorrect because the auxiliary verb “will” can’t be used like that. But here, “Will” is likely a name, so “Will sneezed” is incorrect — it should be “Will sneezed” → but “sneezed” is past tense, and “Will” as a name is fine. The issue is: “Will” is a name, so “Will sneezed” is correct? Yes — "Will sneezed" is correct grammar if "Will" is a person's name.
But wait: “Will” is a name, and “sneezed” is past tense — so "Will sneezed" is correct.
But let's double-check: "Will sneezed" → this is correct if "Will" is a name. Example: "Will sneezed loudly." So yes, it's a complete sentence.
✔ Sentence
> Correction: Earlier I thought it might be a fragment, but it's actually a complete sentence with subject "Will" and verb "sneezed".
19. Russell knew the answer, but he didn’t raise his hand.
→ Two independent clauses joined by "but" — correctly punctuated.
✔ Sentence
20. I finished, Charlie did not.
→ Two independent clauses joined by a comma — comma splice. Should be: "I finished. Charlie did not." or "I finished, and Charlie did not."
✘ Run-on
21. If I go to school today, I will take the test, but my brother is staying home.
→ "If I go..." is a dependent clause. Then "I will take the test" and "my brother is staying home" are independent clauses. But the second one is joined with "but", which is a coordinating conjunction — so it's a compound-complex sentence. However, the structure is correct: dependent clause + independent clause + independent clause joined properly.
✔ Sentence
22. This increases the effect.
→ Subject + verb, complete thought.
✔ Sentence
23. The tidal wave swept across the shore.
→ Subject + verb, complete thought.
✔ Sentence
24. A warning blaring across the TV news tonight.
→ Noun phrase with present participle — no finite verb. Incomplete.
✘ Fragment
25. Learning to play a musical instrument well takes a great deal of time.
→ Gerund phrase as subject ("Learning..."), verb "takes". Complete thought.
✔ Sentence
---
| # | Sentence | Fragment | Run-on |
|---|----------|----------|--------|
| 1 | ✔ | | |
| 2 | | | ✔ |
| 3 | | | ✔ |
| 4 | | ✔ | |
| 5 | ✔ | | |
| 6 | | ✔ | |
| 7 | | ✔ | |
| 8 | | | ✔ |
| 9 | | ✔ | |
| 10 | ✔ | | |
| 11 | ✔ | | |
| 12 | ✔ | | |
| 13 | ✔ | | |
| 14 | | | ✔ |
| 15 | | ✔ | |
| 16 | | | ✔ |
| 17 | | ✔ | |
| 18 | ✔ | | |
| 19 | ✔ | | |
| 20 | | | ✔ |
| 21 | ✔ | | |
| 22 | ✔ | | |
| 23 | ✔ | | |
| 24 | | ✔ | |
| 25 | ✔ | | |
---
- Sentences: 1, 5, 10, 11, 12, 13, 18, 19, 21, 22, 23, 25
- Fragments: 4, 6, 7, 9, 15, 17, 24
- Run-ons: 2, 3, 8, 14, 16, 20
Let me know if you'd like this in a printable format!
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✔ Definitions:
- Sentence: A complete thought with a subject and predicate, expressing a full idea.
- Fragment: Incomplete thought—lacks a subject, predicate, or both; cannot stand alone.
- Run-on: Two or more independent clauses joined incorrectly (no proper punctuation or conjunction).
---
🔍 Analysis of Each Item:
1. This position requires speaking, writing, and supervising skills.
→ Complete thought, subject + predicate.
✔ Sentence
2. This is not what I requested the color is too dark, and it's the wrong size.
→ Two independent clauses joined without proper punctuation. "This is not what I requested" and "the color is too dark, and it's the wrong size" are separate ideas run together.
✘ Run-on
3. It is important to spend time studying, however, rest and recreation are also important.
→ "However" is a conjunctive adverb. It should be preceded by a comma and followed by a comma. But here, it's in the middle without proper separation. This creates a comma splice — two independent clauses joined only by a comma.
✘ Run-on
4. After searching through a loose-leaf binder of old homework assignments.
→ Starts with a prepositional phrase, no main verb or subject. Incomplete.
✘ Fragment
5. Luna stood up.
→ Subject + verb, complete thought.
✔ Sentence
6. Then calmed down about the situation.
→ No subject ("then" is an adverb). Missing subject.
✘ Fragment
7. Mary, sitting on the edge of her chair and holding the puppy.
→ Descriptive phrase, but no verb. Not a complete sentence.
✘ Fragment
8. Go straight home, do not stop at your friend's house.
→ Two imperative sentences joined without proper punctuation. Should be separated by a period or semicolon.
✘ Run-on
9. Probably two to three hours, depending on how hard the task is.
→ No subject or verb. Just a phrase.
✘ Fragment
10. The test was rumored to be extremely difficult.
→ Subject + verb, complete thought.
✔ Sentence
11. Harry and Ron should have prepared better for their exam.
→ Subject + verb, complete thought.
✔ Sentence
12. Keegan watched the video for a moment and then went back to work.
→ One subject, compound verb. Correctly structured.
✔ Sentence
13. I like the way Judge Smith runs the courtroom because she has no trouble keeping order.
→ Complex sentence with subordinate clause. Complete thought.
✔ Sentence
14. First, they had to change then they had to run laps around the court.
→ Two independent clauses: "they had to change" and "they had to run laps". Joined without conjunction or punctuation.
✘ Run-on
15. Because the barking dog kept Jeremiah awake past three in the morning.
→ Starts with a subordinating conjunction ("because") but no main clause. Dependent clause only.
✘ Fragment
16. Either she will or she won't, don't ask me.
→ Two independent clauses: "Either she will or she won't" and "don't ask me". They are joined improperly.
✘ Run-on
17. At the beginning of the movie, but before the main character appeared.
→ Prepositional phrase + coordinating conjunction, no verb. Incomplete.
✘ Fragment
18. Will sneezed.
→ Subject "Will" + verb "sneezed"? Wait — "Will" is likely a name, but it’s spelled as a modal verb. If it's meant to be a name, it's correct. But "Will" as a name is acceptable. "Will sneezed" is grammatically incorrect — should be "Will sneezed" → actually, that's incorrect because "sneezed" is past tense, but "Will" as a name would need to be capitalized and the verb should be "sneezed" (correct form). Wait: "Will sneezed" is not grammatically correct — it should be "Will sneezed" → no, that's fine if "Will" is a name. Actually, “Will sneezed” is correct? Let’s check.
Wait — “Will” is a name, so “Will sneezed” is grammatically incorrect because the auxiliary verb “will” can’t be used like that. But here, “Will” is likely a name, so “Will sneezed” is incorrect — it should be “Will sneezed” → but “sneezed” is past tense, and “Will” as a name is fine. The issue is: “Will” is a name, so “Will sneezed” is correct? Yes — "Will sneezed" is correct grammar if "Will" is a person's name.
But wait: “Will” is a name, and “sneezed” is past tense — so "Will sneezed" is correct.
But let's double-check: "Will sneezed" → this is correct if "Will" is a name. Example: "Will sneezed loudly." So yes, it's a complete sentence.
✔ Sentence
> Correction: Earlier I thought it might be a fragment, but it's actually a complete sentence with subject "Will" and verb "sneezed".
19. Russell knew the answer, but he didn’t raise his hand.
→ Two independent clauses joined by "but" — correctly punctuated.
✔ Sentence
20. I finished, Charlie did not.
→ Two independent clauses joined by a comma — comma splice. Should be: "I finished. Charlie did not." or "I finished, and Charlie did not."
✘ Run-on
21. If I go to school today, I will take the test, but my brother is staying home.
→ "If I go..." is a dependent clause. Then "I will take the test" and "my brother is staying home" are independent clauses. But the second one is joined with "but", which is a coordinating conjunction — so it's a compound-complex sentence. However, the structure is correct: dependent clause + independent clause + independent clause joined properly.
✔ Sentence
22. This increases the effect.
→ Subject + verb, complete thought.
✔ Sentence
23. The tidal wave swept across the shore.
→ Subject + verb, complete thought.
✔ Sentence
24. A warning blaring across the TV news tonight.
→ Noun phrase with present participle — no finite verb. Incomplete.
✘ Fragment
25. Learning to play a musical instrument well takes a great deal of time.
→ Gerund phrase as subject ("Learning..."), verb "takes". Complete thought.
✔ Sentence
---
✔ Final Answer Table:
| # | Sentence | Fragment | Run-on |
|---|----------|----------|--------|
| 1 | ✔ | | |
| 2 | | | ✔ |
| 3 | | | ✔ |
| 4 | | ✔ | |
| 5 | ✔ | | |
| 6 | | ✔ | |
| 7 | | ✔ | |
| 8 | | | ✔ |
| 9 | | ✔ | |
| 10 | ✔ | | |
| 11 | ✔ | | |
| 12 | ✔ | | |
| 13 | ✔ | | |
| 14 | | | ✔ |
| 15 | | ✔ | |
| 16 | | | ✔ |
| 17 | | ✔ | |
| 18 | ✔ | | |
| 19 | ✔ | | |
| 20 | | | ✔ |
| 21 | ✔ | | |
| 22 | ✔ | | |
| 23 | ✔ | | |
| 24 | | ✔ | |
| 25 | ✔ | | |
---
📝 Summary:
- Sentences: 1, 5, 10, 11, 12, 13, 18, 19, 21, 22, 23, 25
- Fragments: 4, 6, 7, 9, 15, 17, 24
- Run-ons: 2, 3, 8, 14, 16, 20
Let me know if you'd like this in a printable format!
Parent Tip: Review the logic above to help your child master the concept of sentence fragments and run ons worksheet.