Educational worksheet for identifying grammatical sentence structures.

Here is the completed worksheet with each item labeled as Fragment, Run-On, or Sentence, along with a brief explanation for each.

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1. Sentence
*Please call me later.*
→ This is a complete sentence: it has a subject (implied “you”) and a verb (“call”), and expresses a complete thought.

2. Sentence
*Who won?*
→ This is a complete interrogative sentence. The subject is “who” and the verb is “won.” It asks a complete question.

3. Fragment
*Disturbing the peace.*
→ This is a phrase, not a sentence. It lacks a subject and a main verb that forms a complete thought. (It’s a gerund phrase.)

4. Run-On
*My opinion is that you should keep the kitten, it needs a good home.*
→ Two independent clauses joined by a comma without a conjunction → comma splice. Should be separated by a period, semicolon, or conjunction like “because.”

5. Fragment
*Copying the lesson from the book.*
→ This is a participial phrase. No subject or finite verb to form a complete sentence.

6. Sentence
*A soccer ball was kicked to the far end of the field.*
→ Complete sentence with subject (“A soccer ball”) and verb (“was kicked”). Passive voice, but still grammatically complete.

7. Run-On
*Mother drove the car Dad flew.*
→ Two independent clauses (“Mother drove the car” and “Dad flew”) run together without punctuation or conjunction. Needs a comma + “and” or a period.

8. Fragment
*Talking on the telephone at the end of the day.*
→ Gerund phrase; no subject or main verb. Incomplete thought.

9. Sentence
*A snake slivered under a rocker.*
→ Subject (“A snake”), verb (“slivered”), object/prepositional phrase (“under a rocker”). Complete thought.

10. Run-On
*With winter approaching, I become more anxious about skiing, sledding is going to be fun too.*
→ Two independent clauses: “I become more anxious…” and “sledding is going to be fun too.” The comma after “skiing” incorrectly joins them. Should use a period or semicolon.

11. Sentence
*Be prepared to make sudden stops on this road.*
→ Imperative sentence. Implied subject “you,” verb “be,” and complete thought.

12. Fragment
*Unless Mrs. Farmington calls.*
→ Dependent clause. Cannot stand alone. Needs an independent clause to complete the thought (e.g., “Unless Mrs. Farmington calls, we’ll leave.”)

13. Run-On
*They ran out the door, I followed them.*
→ Comma splice. Two independent clauses joined by a comma. Should use a period, semicolon, or conjunction.

14. Sentence
*We went swimming last summer.*
→ Subject (“We”), verb (“went”), and complete thought. Simple past tense sentence.

15. Sentence
*The ball field is past Joan’s house.*
→ Subject (“The ball field”), verb (“is”), complement (“past Joan’s house”). Complete thought.

16. Run-On
*The students enjoyed the break, the teachers did also.*
→ Two independent clauses joined by a comma. Use a period or semicolon instead.

17. Sentence
*Did you put your name on your paper?*
→ Interrogative sentence. Subject “you,” verb “did put,” complete question.

18. Fragment
*Since George was late.*
→ Subordinate (dependent) clause. Cannot stand alone. Needs an independent clause (e.g., “Since George was late, we started without him.”)

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✔ Final Answer Key:

1. Sentence
2. Sentence
3. Fragment
4. Run-On
5. Fragment
6. Sentence
7. Run-On
8. Fragment
9. Sentence
10. Run-On
11. Sentence
12. Fragment
13. Run-On
14. Sentence
15. Sentence
16. Run-On
17. Sentence
18. Fragment

Let me know if you’d like printable versions or explanations for classroom use!