Complex Sentence Structures

1. Definition & Core Meaning

Complex sentences combine an independent clause (can stand alone) with a dependent clause (cannot stand alone), joined by a subordinating conjunction.

What is it?
Independent + Dependent Clauses

2. Use Cases

• Contrast: "Although it was raining, we went outside."
• Time: "I will call you when I arrive."
• Cause: "She stayed home because she was sick."
• Condition: "If you study, you will pass."

Subordinating conjunctions: when, while, because, although, if, unless

3. When to Use It (Time Expressions/Signals)

[!NOTE]
Signal words: although, because, when, while, if, unless, since, even though

4. How to Use It (Rules)

• Use comma if dependent clause comes first
• No comma if independent clause is first
• Must have both types of clauses