Questions: Independent Clauses

Question 1

Which of the following is an independent clause?

• A. Because she studied hard
• B. When the storm finally ended
• C. She studied hard
• D. Although the weather was cold

Answer: (C)

Options A, B, and D all have subjects and verbs, but each begins with a subordinating word (because, when, although) that makes it depend on another clause to complete the thought. 'She studied hard' has a subject (she), a predicate (studied hard), and expresses a complete thought with no subordinating word — it can stand alone as a sentence. This is the key distinction: having a subject and verb is necessary but not sufficient for independence.

Question 2

A student writes: 'I finished my work, I went home.' A teacher marks this as an error. What is the error and how can it be corrected?

• A. A sentence fragment — 'I went home' needs more detail to be complete
• B. A comma splice — two independent clauses are joined with only a comma; fix by adding a coordinating conjunction (e.g., 'and') after the comma, or replacing the comma with a semicolon
• C. A dangling modifier — 'I finished my work' modifies the wrong noun
• D. Correct punctuation — a comma is always appropriate between two related clauses

Answer: (B)

Both 'I finished my work' and 'I went home' are independent clauses — each has a subject, a verb, and expresses a complete thought. Joining two independent clauses with only a comma creates a comma splice, one of the most common punctuation errors. Fixes include: adding a coordinating conjunction ('I finished my work, and I went home'), replacing the comma with a semicolon ('I finished my work; I went home'), or making one clause dependent ('After I finished my work, I went home').

Question 3

Any group of words that contains both a subject and a verb qualifies as an independent clause.

• T. True
• F. False

Answer: False

Dependent (subordinate) clauses also contain subjects and verbs, but they cannot stand alone. 'Because she left' has a subject (she) and a verb (left), yet it is not independent — the word 'because' subordinates it, making it depend on another clause. The defining feature of an independent clause is not just having a subject and verb, but expressing a complete thought without grammatical reliance on surrounding words.

Question 4

A semicolon can correctly join two independent clauses without a coordinating conjunction.

• T. True
• F. False

Answer: True

A semicolon alone is a valid — and often elegant — way to join two closely related independent clauses. 'She finished the project; she submitted it immediately.' No coordinating conjunction is needed. This is distinct from using a comma alone (a comma splice) or a conjunctive adverb like 'however' (which requires a semicolon before it and a comma after: 'She finished; however, she was exhausted.').

Question 5

What is the 'complete thought' test for an independent clause, and why doesn't having a subject and verb guarantee independence? Give an example of a dependent clause that has both.

Model answer: The 'complete thought' test: read the group of words aloud and ask whether it feels finished or whether it raises an unanswered question. A clause like 'although he tried' has a subject (he) and a verb (tried), but the word 'although' makes it feel unfinished — although he tried, what? A subordinating word (because, when, if, although, who, that) strips a clause of self-sufficiency even when the subject and verb are present.

This distinction matters for punctuation: once you can identify independent clauses, you know where you can place semicolons and coordinating conjunctions, and where comma splices would occur. A dependent clause with a subject and verb looks deceivingly 'complete' to newer writers, which is why the complete-thought test (not just the subject-verb check) is the reliable tool.