Free. Exclusive. Just for you.
Four unique services that make learning easier, faster, and smarter - only on our website.

Worksheet designed to teach students how to identify simple, compound, and complex sentences, with examples and space for answers.

Worksheet titled "Complex Sentences" with instructions and nine sentence examples for identifying sentence types, featuring a small illustration of a person fishing in the top right corner.

Worksheet titled "Complex Sentences" with instructions and nine sentence examples for identifying sentence types, featuring a small illustration of a person fishing in the top right corner.

PNG 416×539 22.6 KB Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #682109
Show Answer Key & Explanations Step-by-step solution for: Complex Sentences Worksheets - 15 Worksheets Library
Explanation:
We need to decide whether each sentence is simple, compound, or complex.

Let’s review the definitions quickly:

- Simple sentence: One independent clause (one subject + one predicate). No commas or conjunctions joining clauses.
- Compound sentence: Two or more independent clauses joined by a coordinating conjunction (and, but, or, so, yet, for, nor) or a semicolon.
- Complex sentence: One independent clause + at least one dependent (subordinate) clause. Dependent clauses start with subordinating conjunctions like *before*, *after*, *because*, *since*, *although*, *if*, *when*, *while*, *as*, etc.

Now go through each sentence:

1. Before we ate, I washed my hands.
- “Before we ate” = dependent clause (starts with *before*).
- “I washed my hands” = independent clause.
Complex

2. Ben fished off the pier all morning.
- One subject (Ben), one verb (fished), no other clauses.
Simple

3. The boy who I like is in my first class.
- “The boy” = subject of main clause.
- “who I like” = dependent clause (relative clause, starts with *who*).
- “is in my first class” = main (independent) clause.
Complex

4. Dylan is a drummer, and Pete plays guitar.
- Two independent clauses:
• Dylan is a drummer
• Pete plays guitar
- Joined by *and*.
Compound

5. I will wait here until you finish your work.
- “until you finish your work” = dependent clause (starts with *until*).
- “I will wait here” = independent clause.
Complex

6. As I have nothing else to do, I’ll come too.
- “As I have nothing else to do” = dependent clause (*as* is a subordinating conjunction).
- “I’ll come too” = independent clause.
Complex

7. I washed my hands and ate a sandwich.
- One subject (*I*), two verbs (*washed*, *ate*) joined by *and* — this is a compound predicate, not compound sentence. Still only one independent clause.
Simple

8. Mark the errors with a red pen.
- Imperative sentence, one clause, no conjunctions or dependent parts.
Simple

9. Shannon has been avoiding chance since change can be scary.
- “since change can be scary” = dependent clause (*since* is subordinating).
- “Shannon has been avoiding chance” = independent clause.
Complex

Let’s double-check tricky ones:
- #7: “I washed my hands and ate a sandwich” — same subject, two verbs = simple sentence with compound verb.
- #3: Relative clause “who I like” makes it complex.
- #9: “since” introduces a dependent clause — yes, complex.

Final classifications:
1. Complex
2. Simple
3. Complex
4. Compound
5. Complex
6. Complex
7. Simple
8. Simple
9. Complex

Final Answer:
1. Complex
2. Simple
3. Complex
4. Compound
5. Complex
6. Complex
7. Simple
8. Simple
9. Complex
Parent Tip: Review the logic above to help your child master the concept of complex sentence practice worksheet.
Print Download

How to use

Click Print to open a print-ready version directly in your browser, or use Download to save the file to your device. The ⭐ Answer button generates an AI answer key instantly - useful for teachers who need a quick reference. Need a different version? Our AI Worksheet Generator lets you create a custom worksheet on any topic in seconds.

(view all complex sentence practice worksheet)

Writing Complex Sentences | Sentence Structure Worksheets
Complex Sentence Worksheets
Compound Sentence Worksheets
Writing complex sentences worksheets | K5 Learning
Complex sentences activity | Live Worksheets
Simple Compound, & Complex Sentences worksheet | Live Worksheets
Write a Compund Sentence | Sentence Structure Worksheets
Complex Sentences Worksheet (teacher made) - Twinkl
Writing compound sentences worksheets | K5 Learning
Write a Complex Sentence Worksheet