20 Essential Verbal Error Correction Rules
Master high-frequency grammar rules tested in the Infosys Online Test with real exam-level examples, explanations, and quick practice modes.
Subject-Verb Agreement with ‘Neither/Nor’ & ‘Either/Or’
Rule Logic: When two subjects are connected by neither… nor or either… or, the verb must agree in number with the subject closest to it.
Neither the manager nor the software developers was aware of the system glitch.
Neither the manager nor the software developers were aware of the system glitch.
Expressions like ‘Along With’, ‘As Well As’, ‘Together With’
Rule Logic: Expressions like along with, as well as, together with, in addition to, accompanied by do not make the subject plural. The verb agrees strictly with the first subject.
The project lead as well as the team members are attending the client meeting today.
The project lead as well as the team members is attending the client meeting today.
Misplaced & Dangling Modifiers
Rule Logic: An introductory modifying phrase must immediately precede the noun/subject it modifies. Otherwise, it creates a illogical “dangling” statement.
Walking into the server room, the temperature felt extremely cold.
Walking into the server room, the engineer felt that the temperature was extremely cold.
Parallel Structure in Lists & Correlative Conjunctions
Rule Logic: Items in a series or joined by correlative conjunctions (not only… but also, both… and, either… or) must match grammatically (verbs with verbs, nouns with nouns, gerunds with gerunds).
The system analyst is responsible for gathering requirements, designing systems, and to test code.
The system analyst is responsible for gathering requirements, designing systems, and testing code.
Past Perfect Sequence for Two Completed Past Actions
Rule Logic: When two actions happened in the past, the earlier action takes the Past Perfect (had + V3), while the later action takes the Simple Past (V2).
The server crashed before the database administrator saved the updated logs.
The server had crashed before the database administrator saved the updated logs.
Third Conditional Construction (Unreal Past)
Rule Logic: For hypothetical past situations, use If + Past Perfect (had + V3) in the condition clause, and would have / could have + V3 in the result clause.
If the team would have tested the API earlier, they would have caught the bug.
If the team had tested the API earlier, they would have caught the bug.
Pronoun Case Following Prepositions (‘Between you and me’)
Rule Logic: Prepositions (like between, except, besides, with) must always be followed by Objective Case Pronouns (me, him, her, us, them), not subjective pronouns (I, he, she, we).
The confidential project details must remain strictly between you and I.
The confidential project details must remain strictly between you and me.
Singular Indefinite Pronouns & Pronoun Agreement
Rule Logic: Indefinite pronouns like everyone, everybody, someone, each, nobody, anyone are grammatically singular and require singular verbs and singular pronouns.
Everyone on the engineering team must submit their time-sheet by Friday.
Everyone on the engineering team must submit his or her time-sheet by Friday.
‘Who’ vs. ‘Whom’ Distinction
Rule Logic: Use Who when referring to the subject of a clause (he/she). Use Whom when referring to the object of a verb or preposition (him/her).
The candidate who the panel interviewed last was highly qualified.
The candidate whom the panel interviewed last was highly qualified.
Faulty Comparisons (‘Than that of’ / ‘Than those of’)
Rule Logic: Always compare logical equivalents. Compare attributes of A to attributes of B using than that of (singular) or than those of (plural).
The salary of a Systems Engineer at Infosys is higher than a fresh graduate.
The salary of a Systems Engineer at Infosys is higher than that of a fresh graduate.
Redundancy & Tautology Errors
Rule Logic: Avoid pairing words that repeat the same meaning. Common corporate traps include revert back, return back, repeat again, sufficient enough, reason is because.
Please revert back to this email with the sufficient enough documentation.
Please reply to this email with sufficient documentation.
Inversion after Negative Adverbs (‘Hardly… when’, ‘No sooner… than’)
Rule Logic: Sentences starting with negative adverbs (Hardly, Scarcely, Barely, No sooner) require subject-verb inversion (e.g., Hardly had I…). Pair Hardly… when and No sooner… than.
Hardly the deploy finished then the server went down.
Hardly had the deployment finished when the server went down.
Uncountable Nouns & Plurality Traps
Rule Logic: Uncountable nouns such as information, furniture, advice, equipment, scenery, luggage, knowledge do not take plural ‘s’ or singular articles ‘a/an’.
The consultant provided valuable informations and equipments for the lab.
The consultant provided valuable information and equipment for the lab.
Use of ‘Lest’ followed by ‘Should’
Rule Logic: Lest means “for fear that” and carries a negative connotation. It must be followed by should (or subjunctive verb). Do not use ‘not’ with lest.
Double-check the code lest you should not fail the automated build test.
Double-check the code lest you should fail the automated build test.
Definite Article ‘The’ with Superlatives & Ordinals
Rule Logic: The definite article ‘the’ must precede superlative adjectives (best, highest, most efficient) and ordinal numbers (first, second, main).
Python is most popular language used for machine learning models.
Python is the most popular language used for machine learning models.
Redundant Prepositions & Latin Adjectives (‘Superior to’)
Rule Logic: Certain verbs do not take prepositions (e.g., discuss, comprise, order, emphasize). Also, Latin comparatives ending in ‘-ior’ (superior, inferior, senior, prior) take to, never ‘than’.
We will discuss about the solution which is superior than theirs.
We will discuss the solution which is superior to theirs.
Hyphenated Compound Adjectives with Nouns
Rule Logic: When a compound number and noun form an adjective preceding another noun, the measure noun in the hyphenated unit must be singular.
Infosys announced a three-months training program at Mysore campus.
Infosys announced a three-month training program at Mysore campus.
‘Few / A Few’ vs. ‘Little / A Little’
Rule Logic: Use Few / A few with countable nouns. Use Little / A little with uncountable nouns. (‘A few / A little’ = positive small amount; ‘Few / Little’ = negative/almost none).
There are little defects remaining in the software module.
There are few defects remaining in the software module.
Present Perfect vs. Simple Past with Time Markers
Rule Logic: Do NOT use Present Perfect (has/have + V3) with specific past time markers (e.g., yesterday, last week, in 2022, ago). Use Simple Past (V2) instead. Use Present Perfect with since/for.
The recruitment team has sent the offer letters yesterday evening.
The recruitment team sent the offer letters yesterday evening.
Gerunds after Specific Expressions (‘Look forward to + V-ing’)
Rule Logic: Phrases where ‘to’ is a preposition (e.g., look forward to, accustomed to, object to, with a view to) must be followed by a Gerund (Verb-ing), not a base verb infinitive.
We look forward to join the Infosys Mysore training center next month.
We look forward to joining the Infosys Mysore training center next month.
