Introduction
Sentence structure is the arrangement of words, phrases, and clauses to form grammatically correct and meaningful sentences. For SSC CGL Tier-I English, questions test your ability to identify sentence components, correct errors, and improve sentences. A clear understanding of subject, predicate, phrase, and clause types is essential.
Basic Sentence Components: Subject and Predicate
Every complete sentence has two main parts: the subject (who or what the sentence is about) and the predicate (what is said about the subject). The subject is usually a noun or pronoun, and the predicate contains the verb and other details. Recognizing these helps in spotting errors like missing subjects or mismatched verbs.
Key Points
- The subject can be simple (one word) or complete (with modifiers).
- The predicate must contain a finite verb; without it, the sentence is a fragment.
- Imperative sentences have an implied subject 'you'.
Solved Example 1
Question: Identify subject and predicate: 'The tall boy in the blue shirt runs quickly.'
Solution: Subject: 'The tall boy in the blue shirt'; Predicate: 'runs quickly'.
Explanation: Ask 'who runs quickly?' → 'The tall boy in the blue shirt' is the complete subject. The verb 'runs' and adverb 'quickly' form the predicate.
Phrases and Clauses
A phrase is a group of words without a subject-verb pair (e.g., 'in the morning'). A clause contains a subject and a verb. Clauses are independent (can stand alone) or dependent (cannot stand alone). SSC questions often test comma splices, run-ons, and fragment errors involving clauses.
Key Points
- Independent clause = simple sentence; dependent clause needs an independent clause to complete meaning.
- Common subordinating conjunctions: because, although, when, if, since.
- A phrase cannot be a sentence on its own.
Solved Example 1
Question: Is this a sentence? 'Because I was late.'
Solution: No, it is a dependent clause fragment.
Explanation: 'Because' makes the clause dependent; it needs an independent clause like 'I missed the bus because I was late.'
Practice Questions
Q1. Choose the grammatically correct sentence: (A) She don't like coffee. (B) She doesn't likes coffee. (C) She doesn't like coffee. (D) She not like coffee.
Answer: C
Explanation: With third-person singular 'she', use 'does not' + base verb 'like'. Option C follows this rule.
Q2. Identify the type of sentence: 'What a beautiful day!'
Answer: Exclamatory sentence
Explanation: It expresses strong emotion and ends with an exclamation mark.
Q3. Combine into one sentence: 'He was tired. He continued working.'
Answer: Although he was tired, he continued working.
Explanation: Use subordinating conjunction 'although' to show contrast and form a complex sentence.
Common Mistakes
- Writing sentence fragments: missing subject or verb. Always check for a complete thought.
- Using comma splices: joining two independent clauses with only a comma. Use a conjunction or semicolon.
- Mismatching subject-verb agreement: ignore intervening phrases to find the true subject.
Quick Revision
- Every sentence needs a subject and a predicate with a finite verb.
- Phrases lack subject-verb; clauses have both. Dependent clauses cannot stand alone.
- Avoid fragments, run-ons, and comma splices by ensuring each sentence is a complete thought.