Sentence Construction

🟢 Lite — Quick Review (1h–1d)

Rapid summary for last-minute revision before your exam.

Sentence Construction in the NECO SSCE English Language paper tests your ability to form grammatically correct, meaningful sentences. This section may involve rearranging jumbled words, correcting faulty sentences, or constructing sentences from prompts.

Four Sentence Types You Must Know:

Type	Purpose	Example	Punctuation
Declarative	Makes a statement	”The teacher is in the class.”	Full stop
Interrogative	Asks a question	”Is the teacher in the class?”	Question mark
Imperative	Gives a command	”Close the door.”	Full stop
Exclamatory	Shows strong emotion	”What a beautiful day!”	Exclamation mark

Basic Sentence Components:

Every complete English sentence needs:

• Subject — Who or what the sentence is about
• Predicate — What the subject does or is

Examples:

• “Chidi plays football.” (Subject: Chidi, Predicate: plays football)
• “The cat sat on the mat.” (Subject: The cat, Predicate: sat on the mat)
• “Mariam is a doctor.” (Subject: Mariam, Predicate: is a doctor)

⚡ NECO Tips:

• Every sentence must have a subject and a verb
• Tenses must agree within the sentence
• Capital letters start sentences and proper nouns
• Avoid run-on sentences (separate with full stops or semicolons)

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🟡 Standard — Regular Study (2d–2mo)

Standard content for students who want to master sentence construction.

The Eight Parts of Speech:

Part of Speech	Function	Examples
Noun	Names a person, place, thing, or idea	Lagos, teacher, happiness
Pronoun	Replaces a noun	he, she, they, it, we
Verb	Expresses action or state	runs, is, thinks, became
Adjective	Describes a noun	tall, blue, Nigerian
Adverb	Describes a verb/adjective/other adverb	quickly, very, always
Preposition	Shows relationship between nouns	in, on, at, to, from
Conjunction	Joins words or clauses	and, but, because, although
Interjection	Expresses emotion	wow! ouch! hurray!

Sentence Structures:

Simple Sentence: One independent clause (subject + verb). “Adaeze read her book.” “The bell rang.”

Compound Sentence: Two or more independent clauses joined by a conjunction. “Adaeze read her book and Tolu went to the market.” “We could go to the cinema or we could stay home.”

Complex Sentence: One independent clause + one or more dependent clauses. “Because Adaeze finished her homework, she went to the cinema.” “The book that I bought yesterday is very interesting.”

⚡ Common Sentence Construction Errors:

1. No Subject: “Went to the store.” → Should be “I went to the store.”
2. No Verb: “The beautiful sunset.” → Should be “The beautiful sunset was amazing.”
3. Wrong Tense: “Yesterday, I go to school.” → Should be “Yesterday, I went to school.”
4. Double Negative: “I don’t want nothing.” → Should be “I don’t want anything.”
5. Misplaced Modifier: “She served sandwiches to the children on paper plates.” (Correct: the paper plates held the sandwiches, not the children)
6. Run-on Sentence: “The bell rang it was time for assembly.” → Should be “The bell rang. It was time for assembly.”

Jumbled Words/Sentence Rearrangement Strategy:

When rearranging jumbled words:

1. Find what looks like the subject (usually a noun or pronoun)
2. Find the verb (action word)
3. Arrange: Subject + Verb + Object/Complement
4. Add modifiers (adjectives, adverbs) in appropriate places
5. Add prepositional phrases at the beginning or end

Example: Words: “the / form / completed / students / their / have” Correct: “The students have completed their form.”

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🔴 Extended — Deep Study (3mo+)

Comprehensive coverage for thorough preparation and high scores.

Advanced Sentence Construction for NECO Excellence

Understanding Clauses:

An independent clause can stand alone as a complete sentence. A dependent clause cannot stand alone — it needs an independent clause.

Dependent clause markers:

• Subordinating conjunctions: because, although, since, while, when, if, unless, after, before
• Relative pronouns: who, whom, whose, which, that

Types of Dependent Clauses:

1. Noun Clause — Functions as a noun

• “What she said surprised me.” (Subject)
• “I believe that he is honest.” (Object)
• “The question is whether we should go.” (Complement)

2. Adjective Clause — Describes a noun

• “The girl who won the prize is my sister.”
• “The book that I read was exciting.”
• “Lagos, which is Nigeria’s largest city, is very busy.”

3. Adverb Clause — Describes a verb/adjective/adverb

• “She smiled when she saw her mother.” (Time)
• “He studied hard because he wanted to pass.” (Reason)
• “Although it was raining, we went outside.” (Contrast)

Phrases vs. Clauses:

Feature	Phrase	Clause
Verb	May or may not have verb	Always has verb
Subject	No separate subject	Has its own subject
Independence	Cannot stand alone	Independent can; dependent cannot

Active vs. Passive Voice:

Active: Subject performs the action. “Chidi wrote the letter.” (Chidi = subject doing the writing)

Passive: Subject receives the action. “The letter was written by Chidi.” (Letter = subject receiving the action)

Both are correct; passive is useful when the actor is unknown or unimportant.

Direct and Indirect Objects:

“Chidi gave Ada a book.”

• Subject: Chidi
• Verb: gave
• Indirect Object (IO): Ada (to whom)
• Direct Object (DO): a book (what)

Some verbs take only direct objects: “She ate rice.” (ate what? rice)

⚡ Advanced NECO Patterns:

Conditional Sentences:

Type	Structure	Time Reference
Zero Conditional	If + present simple, present simple	General truths
First Conditional	If + present, will + verb	Real possibilities in future
Second Conditional	If + past, would + verb	Unreal/hypothetical
Third Conditional	If + past perfect, would have + past participle	Past unreal situations

Examples:

• Zero: “If you heat water, it boils.”
• First: “If it rains tomorrow, I will stay home.”
• Second: “If I were rich, I would buy a house.”
• Third: “If I had studied, I would have passed.”

Reported Speech:

When reporting what someone said, changes occur:

Direct	Reported
”I am happy,” she said.	She said that she was happy.
”I went to Lagos yesterday.”	She said she had gone to Lagos the day before.
”I will call you,” he said.	He said he would call me.

⚡ NECO Examination Marking Notes:

• Grammatical accuracy is paramount
• Spelling errors cost marks — proofread carefully
• Punctuation errors are penalised
• Avoid sentence fragments (incomplete sentences)
• Avoid fused sentences (two sentences merged without proper punctuation)

Error Identification Patterns:

NECO often tests recognition of these common errors:

1. Subject-verb disagreement: “The team are playing” (should be “is” — team is singular collective noun)
2. Wrong pronoun case: “Between you and I” (should be “me”)
3. Misplaced “only”: “I only ate rice” (should be “I ate only rice” or “I ate rice only”)
4. Dangling modifiers: “Walking to school, the rain started” (rain didn’t walk — should restructure)
5. Faulty parallelism: “She likes reading and to write” (should be “reading and writing”)