Lexis and Structure

🟢 Lite — Quick Review (1h–1d)

Rapid summary for last-minute revision before your exam.

Lexis and Structure in NECO English Language tests your understanding of vocabulary (lexis) and sentence formation (grammar/structure). The examination has two papers: Paper 1 (Essay) and Paper 2 (Objective), with Lexis and Structure appearing prominently in both.

Key Vocabulary (Lexis) Concepts

Word Classes (Parts of Speech)

Word Class	Function	Examples
Noun	Names a person, place, thing, or idea	book, Lagos, happiness
Pronoun	Replaces a noun	he, she, they, it
Verb	Expresses an action or state	run, is, think
Adjective	Describes a noun	tall, beautiful, old
Adverb	Describes a verb, adjective, or another adverb	quickly, very, often
Preposition	Shows relationship between nouns	in, on, at, beneath
Conjunction	Joins words or clauses	and, but, because
Interjection	Expresses emotion	wow, alas, ouch

Determiners are words that precede nouns and specify them: a, an, the, this, that, these, those, my, his, some, any, no.

Grammatical Structures

Sentence Types:

• Simple sentence: One main clause. “Adaeze reads novels.”
• Compound sentence: Two or more main clauses joined by a conjunction. “Adaeze reads novels and she writes reviews.”
• Complex sentence: One main clause and one or more subordinate clauses. “Although Adaeze reads many novels, she prefers contemporary fiction.”

Tense Forms:

Tense	Formula	Example
Present Simple	S + V1	She writes essays
Present Continuous	S + am/is/are + V-ing	She is writing an essay
Present Perfect	S + have/has + V3	She has written three essays
Past Simple	S + V2	She wrote an essay yesterday
Past Continuous	S + was/were + V-ing	She was writing when I called
Future Simple	S + will + V1	She will write tomorrow

⚡ NECO Exam Tips

• In the Lexis section, read the entire sentence before choosing the answer — context matters.
• Watch for subject-verb agreement errors: “Neither the students nor the teacher were present” is incorrect; it should be “was present” (proximal agreement — the verb agrees with the nearer subject).
• Commonly confused words: affect/effect, practice/practise, license/licence, device/devise.
• In sentence completion questions, identify whether the sentence needs a noun, verb, adjective, or adverb before looking at the options.

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🟡 Standard — Regular Study (2d–2mo)

Standard content for students with a few days to months.

Morphology: Word Formation

Understanding how words are formed helps you decode unfamiliar vocabulary.

Prefixes (added to the beginning):

Prefix	Meaning	Example
un-	not	unhappy, unlock
re-	again, back	rewrite, return
dis-	opposite	disagree, dishonest
mis-	wrongly	misunderstand, misplace
pre-	before	preview, prehistoric
post-	after	postwar, postgraduate
anti-	against	antisocial, anti-malaria
semi-	half	semicircle, semi-final

Suffixes (added to the end):

Suffix	Changes word to…	Example
-tion, -sion	noun	education, decision
-ment	noun	development
-able, -ible	adjective	comfortable, visible
-ous, -ious	adjective	generous, suspicious
-ly	adverb	quickly, carefully
-er, -or	person/thing	teacher, actor
-ness	noun (state)	happiness, kindness
-ful	adjective (full of)	beautiful, hopeful
-less	adjective (without)	careless, hopeless

Word Transformation Examples:

Verb	Noun	Adjective
educate	education	educational
create	creation	creative
examine	examination	examinable
imagine	imagination	imaginative
permit	permission	permissible
know	knowledge	knowledgeable

Syntax: Sentence Structure Patterns

Active vs Passive Voice:

Active: “The teacher marked the scripts.” Passive: “The scripts were marked by the teacher.”

Passive construction uses: subject + form of “be” + past participle (V3)

Conditional Sentences:

Type	Structure	Use
Zero	If + present simple, present simple	General truths
First	If + present simple, will + V1	Real/possible situations
Second	If + past simple, would + V1	Hypothetical present
Third	If + past perfect, would have + V3	Hypothetical past

Examples:

• Zero: “If you heat ice, it melts.”
• First: “If you study hard, you will pass.”
• Second: “If I had money, I would buy a car.”
• Third: “If she had revise, she would have passed.”

Modal Verbs:

Modal	Use	Example
can/could	ability, permission	I can swim
may/might	possibility	It may rain
must/have to	obligation, necessity	You must revise
should	recommendation	You should rest
will	future intention	I will go
would	polite requests	Would you help?

Phrasal Verbs:

Two-word or three-word verb combinations with meanings different from individual words:

• give up (abandon), put off (postpone), turn down (reject), look after (take care of)
• break down (stop working), carry out (perform), come across (find unexpectedly), put up with (tolerate)

Common Errors to Avoid

1. Double negatives: “I don’t need no help” should be “I don’t need any help” or “I need no help.”

2. Misplaced modifiers: “She served sandwiches to the children on paper plates” (ambiguous — were children on paper plates?)

3. Pronoun reference ambiguity: Ensure pronouns clearly refer to specific antecedents.

4. Verb tense consistency within a paragraph: Do not shift tenses unnecessarily without reason.

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🔴 Extended — Deep Study (3mo+)

Comprehensive coverage for students on a longer study timeline.

Advanced Lexical and Grammatical Analysis

Lexical Relations

Understanding relationships between words is crucial for vocabulary-based questions:

Synonymy (words with similar meanings):

• big, large, huge, enormous, massive, gigantic
• happy, glad, pleased, joyful, elated, cheerful

Antonymy (words with opposite meanings):

• hot/cold, light/dark, increase/decrease, complex/simple

Hyponymy (specific vs general):

• dog is a hyponym of animal
• mango, orange, banana are co-hyponyms (both under fruit)

Meronymy (part-whole):

• page is part of a book
• wheel is part of a car

Collocation

Words that naturally go together in English:

• Make a decision (not “do” a decision)
• Take an exam (not “write” an exam in British English)
• Heavy rain (not “strong” rain)
• Deeply concerned (not “deep” concerned)
• Highly successful (not “highly” successful varies)

Register and Formal vs Informal English

NECO essays require formal register:

• Use “I am writing to inform you…” not “Hey, I’m telling you…”
• Avoid colloquialisms: “stuff”, “things”, “lots of”, “kind of”
• Avoid contractions in formal writing: use “do not” not “don’t”

Clause Analysis

Main/Independent Clauses contain a subject and a finite verb and can stand alone: “The bell rang.”

Subordinate/Dependent Clauses cannot stand alone: “When the bell rang” (requires completion)

Relative Clauses begin with relative pronouns (who, whom, whose, which, that): “The student who arrived first was rewarded.”

Noun Clauses function as nouns: “What she said surprised everyone.” (subject of “surprised”) “I know that he is honest.” (object of “know”)

Adverbial Clauses show time, place, reason, condition, purpose, result, contrast:

• Time: “When I arrived, the class had started.”
• Reason: “Because he was ill, he missed the exam.”
• Condition: “If you work hard, you will succeed.”

Grammatical Concord (Agreement)

Notional concord — verb agrees with meaning rather than strict grammar: “The government have announced new policies” (British English, sees government as plural group)

Proximity concord — verb agrees with the nearer subject: “Neither the teachers nor the student was present.”

Collective nouns can take singular or plural verbs depending on meaning: “The team is playing well” (as a unit) “The team are wearing different jerseys” (as individuals)

NECO English Language Paper 2 Structure

Paper 2 contains:

• Section A: Lexis (15 questions)
• Section B: Structure (15 questions)
• Section C: Literature (10 questions)
• Section D: Oral English (10 questions)

Time allocation: 50 minutes for 50 questions — approximately 1 minute per question.

Common NECO Vocabulary Targets:

• ubiquitous (present everywhere)
• ambiguous (unclear, having multiple meanings)
• superficial (surface-level, lacking depth)
• exacerbate (make worse)
• mitigate (make less severe)
• tenacious (holding on firmly, persistent)
• articulate (able to speak clearly, OR jointed)
• compromise (give up something for a settlement)
• consecutive (following one after another)

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