Advanced Grammar - Clauses & Complex Sentences
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Mastering Advanced Grammar - Clauses & Complex Sentences is essential for high-fidelity technical architecture and senior engineering roles in 2026.
Clauses & Complex Sentences
A clause is a group of words that contains a subject and a verb. Not every clause is a complete sentence.
1. Types of Clauses
- Independent Clause (Main Clause): Can stand alone as a complete sentence. It expresses a complete thought. Example: She writes poems.
- Dependent Clause (Subordinate Clause): Cannot stand alone; it depends on a main clause for its complete meaning. Example: because she loves literature.
2. Types of Dependent Clauses
| Clause Type | Function | Conjunction/Connector | Example |
|---|---|---|---|
| Noun Clause | Acts as a subject, object, or complement | that, what, whether, who, how | I know that he is honest. |
| Adjective Clause (Relative Clause) | Modifies a noun or pronoun | who, whom, whose, which, that | The book which I bought is good. |
| Adverb Clause | Modifies a verb, adjective, or adverb | because, although, when, if, since, until | Because it was raining, we stayed inside. |
3. Types of Sentences by Structure
- Simple Sentence: Contains only one Independent Clause. Example: Dogs bark.
- Compound Sentence: Two or more Independent Clauses joined by coordinating conjunctions (FANBOYS: For, And, Nor, But, Or, Yet, So) or a semicolon. Example: I was tired, but I finished the work.
- Complex Sentence: One Independent Clause + one or more Dependent Clause(s). Example: Although he was sick, he attended the class.
- Compound-Complex Sentence: Two or more Independent Clauses + one or more Dependent Clause(s). Example: She cooked dinner and he set the table because guests were arriving.
4. Phrases vs Clauses
- A Phrase is a group of words WITHOUT a subject-verb pair. It cannot stand alone. Example: in the morning, running fast, the old man.
- A Clause has BOTH a subject and a verb.
5. Common Subordinating Conjunctions (for Adverb Clauses)
- Time: when, while, before, after, since, until, as soon as
- Cause/Reason: because, since, as
- Condition: if, unless, provided that
- Concession/Contrast: although, though, even though, whereas
- Purpose: so that, in order that
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