Introduction: Connecting Your Thoughts

Welcome! In this chapter, we are looking at the "architecture" of a sentence. Just as an architect decides where to place walls and windows to make a house functional and beautiful, a writer decides how to arrange independent and dependent clauses to make an argument clear and persuasive. This isn't just about grammar; it’s about how you show the relationships between your ideas. Does one idea cause another? Is one idea more important than the rest? The way you build your sentences tells your reader exactly what to think.

For more on how individual words and punctuation affect your writing, you can check out our chapters on Word choice and syntax or Grammar and mechanics for clarity.

The Building Blocks: Independent vs. Dependent

Before we can look at relationships, we need to know our tools. Every clause contains a subject (who or what) and a verb (the action or state of being).

  • Independent Clauses: These are "strong" clauses. They can stand alone as a complete sentence.
    Example: The student finished the essay.
  • Dependent (Subordinate) Clauses: These are "attached" clauses. Even though they have a subject and a verb, they start with a word (like because, although, if, since, while) that makes them unable to stand alone. They need an independent clause to complete the thought.
    Example: Because the student finished the essay... (This leaves us hanging!)

Analogy: Think of an independent clause as a smartphone—it works perfectly well on its own. A dependent clause is like a pair of headphones—it’s useful, but it needs to be plugged into the phone to fulfill its purpose.

Showing Relationships through Coordination

When you want to show that two ideas are equally important, you use coordination. This usually involves joining two independent clauses using a comma and a coordinating conjunction (the FANBOYS: For, And, Nor, But, Or, Yet, So).

Rhetorical Effect: Coordination creates a balance. It tells the reader, "Both of these facts matter equally to my argument."

Example: The data was inconclusive, so the scientists requested more funding.
Here, the inconclusive data and the request for funding are given equal weight in the sentence.

Showing Relationships through Subordination

This is where the real "magic" of AP-level writing happens. Subordination is when you join a dependent clause to an independent clause. This shows that one idea is less important or dependent on the other. It helps you establish logic like cause and effect, time, or contrast.

Common Relationships Established by Subordination:

  • Cause and Effect: "Since the evidence was flawed, the jury reached a 'not guilty' verdict." (The reason is in the dependent clause; the result is in the independent clause.)
  • Contrast: "Although the policy is expensive, it will save lives in the long run." (The writer acknowledges a downside but emphasizes the benefit.)
  • Condition: "If the city invests in green energy, carbon emissions will drop." (The result depends on the condition.)

Key Takeaway: Whatever you put in the independent clause is what the reader will perceive as the main point. Whatever is in the dependent clause is "extra" or supporting information.

The Power of Placement

Where you put your clauses in a sentence changes the emphasis and tone of your argument. On the AP exam, you may be asked to explain why a writer chose a specific arrangement.

1. Putting the Dependent Clause First (Periodic Sentence Style)

When you start with dependent clauses and save the main independent clause for the very end, you build suspense or emphasis.

Example: After months of planning, despite many setbacks, and against all odds, the project succeeded.
Why use it? It forces the reader to wait for the "punchline," making the final point feel more powerful.

2. Putting the Independent Clause First (Cumulative/Loose Sentence Style)

When you start with the main point and then add layers of detail with dependent clauses, the sentence feels conversational or explanatory.

Example: The project succeeded, even though we had setbacks and months of planning were required.
Why use it? It gets straight to the point and provides clarity immediately.

Quick Tip: If you want to sound more formal or dramatic in your own Argument Essay (Question 3), try placing your dependent clause at the beginning of the sentence occasionally!

Common Mistakes to Avoid

The "Choppy" Draft: Avoid using only short, independent clauses. It makes your argument sound disconnected.
Bad: The sun rose. The birds sang. I felt happy.
Better: When the sun rose and the birds began to sing, I felt happy. (This shows the relationship between the events!)

The Run-On: Don't shove two independent clauses together without proper punctuation or a conjunction.
Mistake: The evidence is clear it supports my claim.
Fix: The evidence is clear, and it supports my claim. (OR: Because the evidence is clear, it supports my claim.)

How to Use This on the AP Exam

Section I: Writing Questions

You might see a draft of a student essay and be asked: "Which version of sentence 5 best shows the causal relationship between the two ideas?"
Strategy: Look for the option that uses subordination (words like because, since, as a result of) rather than just two separate sentences.

Section II: Rhetorical Analysis (Q2)

When analyzing a passage, don't just say "the author uses dependent clauses." Instead, say: "By beginning the sentence with a series of dependent clauses, the author creates a sense of building tension before revealing their main claim."

Summary Key Points:
1. Independent clauses express the main, "strong" ideas.
2. Dependent clauses show relationships like cause, contrast, or time.
3. Coordination shows equality; Subordination shows hierarchy (one idea is more important).
4. Placement matters: putting the main point at the end builds emphasis; putting it at the start provides immediate clarity.