Educational worksheet on complex sentences with exercises for identifying sentence types.

Let's solve this step-by-step by identifying whether each sentence is simple, compound, or complex.

Definitions:

- Simple sentence: One independent clause (one subject and one predicate).
- Compound sentence: Two or more independent clauses joined by a coordinating conjunction (e.g., *and, but, or*) or a semicolon.
- Complex sentence: One independent clause + one or more dependent (subordinate) clauses. The subordinate clause begins with a subordinating conjunction (e.g., *because, when, since, although, if, while*).

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Now let’s analyze each sentence:

1. We rang the doorbell, but no one answered it.
→ Two independent clauses joined by "but".
✔ Compound

2. I wrote Jane a letter while she was away at camp.
→ Main clause: "I wrote Jane a letter"
→ Subordinate clause: "while she was away at camp" (modifies *wrote*)
✔ Complex

3. Have you seen Mr. Nelson’s garden at the back of his house?
→ One independent clause (question form). No subordinate clause.
✔ Simple

4. When Miss Jones entered the room, we all became quiet.
→ Subordinate clause: "When Miss Jones entered the room"
→ Main clause: "we all became quiet"
✔ Complex

5. Susan likes chemistry, but she likes physics better.
→ Two independent clauses joined by "but".
✔ Compound

6. Since we’ve lost every game but one, no one is excited about football this year.
→ Subordinate clause: "Since we’ve lost..."
→ Main clause: "no one is excited..."
✔ Complex

7. When I’m tired, I’m not good company for anyone.
→ Subordinate clause: "When I’m tired"
→ Main clause: "I’m not good company..."
✔ Complex

8. Wandering aimlessly up the path, Mr. Cutter approached the house.
→ "Wandering..." is a participial phrase (not a clause), not a subordinate clause.
→ Only one independent clause.
✔ Simple

9. Susan sang a solo and accompanied herself on the piano.
→ Two verbs ("sang" and "accompanied") in one subject. This is one independent clause with compound predicates.
✔ Simple

10. When the rain began, we were playing tennis.
→ Subordinate clause: "When the rain began"
→ Main clause: "we were playing tennis"
✔ Complex

11. When Uncle Jack comes to town, we all have a good time.
→ Subordinate clause: "When Uncle Jack comes..."
→ Main clause: "we all have..."
✔ Complex

12. I worked all morning, and then I relaxed in the afternoon.
→ Two independent clauses joined by "and".
✔ Compound

13. Beth likes all seasons of the year, but she likes fall best.
→ Two independent clauses joined by "but".
✔ Compound

14. On our trip we drove every afternoon until five o’clock.
→ One main clause. "Until five o'clock" is an adverbial phrase, not a clause.
✔ Simple

15. Dave began to feel better before the doctor arrived.
→ Subordinate clause: "before the doctor arrived"
→ Main clause: "Dave began to feel better"
✔ Complex

16. Whistling loudly, Ken walked past the cemetery.
→ "Whistling..." is a participial phrase, not a clause.
→ One independent clause.
✔ Simple

17. How many states can you see from Lookout Mountain?
→ One independent clause (interrogative).
✔ Simple

18. If you want your car really clean, let George wash it.
→ Subordinate clause: "If you want your car really clean"
→ Main clause: "let George wash it"
✔ Complex

19. I must stay home until the man comes to repair the washing machine.
→ Subordinate clause: "until the man comes..."
→ Main clause: "I must stay home"
✔ Complex

20. Our neighbors are going to Canada on their vacation, but we will take our vacation at home.
→ Two independent clauses joined by "but".
✔ Compound

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Final Answers:

1. Compound
2. Complex
3. Simple
4. Complex
5. Compound
6. Complex
7. Complex
8. Simple
9. Simple
10. Complex
11. Complex
12. Compound
13. Compound
14. Simple
15. Complex
16. Simple
17. Simple
18. Complex
19. Complex
20. Compound

✔ All sentences classified correctly based on structure.