Grammar, vocabulary and sentence construction notes — Unit 1

Technical communication demands absolute clarity, precision, and objectivity. Unlike literary English, which allows for poetic ambiguity, technical English relies on strict grammatical structures to prevent misinterpretation of data, manuals, or research papers.

⇒The Three Pillars of Technical English:

• Clarity: The reader must understand the exact meaning on the first read.
• Conciseness: Expressing the maximum amount of information in the minimum number of words without losing meaning.
• Correctness: Strict adherence to the rules of grammar, spelling, and punctuation.

⇒Nouns (Common Errors)

Some nouns are always treated as singular in technical writing, even if they end in 's' or refer to multiple things:

• Uncountable nouns: Information, equipment, software, hardware, machinery, advice. (Never say "furnitures" or "equipments").
• Subjects: Physics, Mathematics, Thermodynamics.

⇒Pronouns (Antecedent Agreement)

A pronoun must strictly agree with its antecedent (the noun it replaces) in number and gender.

Incorrect: The company released their new policy.
Correct: The company released its new policy. (Company is a singular entity).

⇒Adjectives

Adjectives modify nouns. In engineering, compound adjectives are extremely common and MUST be hyphenated when placed before a noun.

Examples: A high-frequency signal, a three-phase motor, a state-of-the-art facility.

⇒Adverbs

Adverbs modify verbs, adjectives, or other adverbs. They often end in '-ly'. Be careful of placement to avoid ambiguity.

Ambiguous: The technician only tested the circuit. (Did he test it but not repair it?)
Clear: Only the technician tested the circuit. (No one else tested it).

Technical instructions rely heavily on Modal Auxiliary Verbs to indicate the degree of obligation or necessity.

• Must / Shall: Indicates an absolute requirement or mandatory action. (e.g., "The operator must wear safety goggles.")
• Should / Ought to: Indicates a recommendation or best practice, but not strictly mandatory. (e.g., "The cache should be cleared daily.")
• May / Can: Indicates permission or capability. (e.g., "The user can configure the settings.")
• Will: Indicates a future certainty or automatic action. (e.g., "The system will reboot automatically.")

The fundamental rule of grammar: A singular subject takes a singular verb, and a plural subject takes a plural verb.

• Rule 1: Two or more singular subjects joined by 'and' take a plural verb. (e.g., Copper and Aluminum are good conductors.)
• Rule 2: If two singular nouns refer to the same person/idea, the verb is singular. (e.g., The project manager and lead developer is attending the meeting.)
• Rule 3: Words joined to a singular subject by with, as well as, along with, besides do NOT change the number of the subject. (e.g., The engineer, along with his assistants, is testing the prototype.)
• Rule 4: Two subjects joined by Either...or or Neither...nor take a verb that agrees with the subject CLOSER to the verb. (e.g., Neither the supervisor nor the workers were present.)

• Rule 5: Indefinite pronouns like each, every, either, neither, everyone, anybody, nobody are ALWAYS singular. (e.g., Each of the computers has a unique IP address.)
• Rule 6: Collective nouns (committee, team, jury) take a singular verb when acting as a single unit, and a plural verb when members act individually. (e.g., The team is winning. vs The team are arguing among themselves.)
• Rule 7: Plural numbers indicating a single amount, distance, or time take a singular verb. (e.g., Fifty kilometers is a long distance to lay fiber.)
• Rule 8: 'A number of' takes a plural verb, but 'The number of' takes a singular verb. (e.g., A number of servers are down. vs The number of errors is decreasing.)

⇒Simple Present

Used extensively in technical writing for:

• Universal truths and scientific facts. (Water boils at 100°C.)
• Describing processes or manual instructions. (The compiler translates source code into machine code.)

⇒Present Perfect

Used for an action that happened in the past but has an immediate effect on the present state.

(The server has crashed. implies it is currently down. The server crashed. just states a historical event).

⇒Simple Past

Used primarily in research papers, lab reports, and case studies to describe experiments that were completed.

(We tested the tensile strength of the alloy. The results showed a 10% increase.)

⇒Future Tenses

Used in proposals, project plans, and feasibility reports to outline what will be done.

(The new architecture will reduce latency by 50%.)

⇒Active Voice

Subject -> Verb -> Object. The subject performs the action. It is direct, vigorous, and preferred in modern business writing and user manuals.

(The technician rebooted the server.)

⇒Passive Voice

Object -> Verb -> Subject. The subject receives the action.

(The server was rebooted by the technician.)

To convert Active to Passive:

• 1. Swap the Subject and Object.
• 2. Change the main verb to its Past Participle (V3) form.
• 3. Insert the appropriate form of the 'to be' verb (is, are, am, was, were, been, being) before the V3 verb, matching the original tense.

Used when reporting what someone else said (Reported Speech).

• Direct Speech: Quoting the exact words spoken. Enclosed in quotation marks. (e.g., The manager said, "The project is delayed.")
• Indirect Speech: Reporting the meaning of what was said without exact quotes. Pronouns and tenses usually change. (e.g., The manager said that the project was delayed.)

In technical documentation, indirect speech is used to summarize meetings (minutes) or report findings.

If the reporting verb (e.g., said, told) is in the past tense, the tense inside the quotation marks changes to the corresponding past tense:

• Simple Present $\rightarrow$ Simple Past
• Present Continuous $\rightarrow$ Past Continuous
• Simple Past $\rightarrow$ Past Perfect
• Will $\rightarrow$ Would
• Can $\rightarrow$ Could

Exception: Universal truths or scientific facts do NOT change tense.

Direct: The professor said, "Light travels in straight lines."
Indirect: The professor said that light travels in straight lines.

⇒Indefinite Articles (A / An)

Used for non-specific, singular countable nouns. 'An' is used before a VOWEL SOUND (not just a vowel letter).

Examples: An hour (silent h), A university (sounds like 'you'), An M.Tech degree (sounds like 'em').

⇒Definite Article (The)

Used to point out a specific person, place, or thing. Used when the listener already knows what you are referring to.

Example: "Deploy the code to a server, then monitor the server for load."

Prepositions show the relationship between a noun/pronoun and other words in a sentence. They are the most commonly misused words in ESL.

⇒Prepositions of Time:

• At: Specific time (at 5 PM, at noon, at midnight).
• On: Days and dates (on Monday, on the 5th of July).
• In: Months, years, seasons, long periods (in 2024, in August, in the morning).

⇒Prepositions of Place:

• At: A specific point (at the door, at the station).
• On: A surface (on the desk, on the wall).
• In: An enclosed space (in the room, in the box).

Certain verbs and adjectives take fixed prepositions. Memorize these standard collocations:

A rich vocabulary prevents repetition and improves precision in technical writing.

⇒Synonyms (Similar Meaning)

Use synonyms to elevate tone. Instead of saying "The machine is broken," say "The machine is defective" or "malfunctioning."

• Important $\rightarrow$ Crucial, Vital, Essential
• Use $\rightarrow$ Utilize, Employ, Implement
• Show $\rightarrow$ Demonstrate, Illustrate, Indicate

⇒Antonyms (Opposite Meaning)

• Explicit (clearly stated) vs Implicit (implied)
• Converge (come together) vs Diverge (move apart)
• Static (unchanging) vs Dynamic (changing)

Homophones: Words that sound exactly the same but have different spellings and meanings. These cause severe typos in professional emails.

• Accept (to receive) vs Except (to exclude)
• Affect (Verb: to influence) vs Effect (Noun: the result)
• Principal (Head/Main) vs Principle (Rule/Law)
• Complement (to complete) vs Compliment (praise)

Homonyms: Words with the same spelling and pronunciation, but entirely different meanings.

Example: Current (water flow / electrical flow / present time). Bank (river edge / financial institution).

You can exponentially increase your vocabulary by understanding root words, prefixes (added at the start), and suffixes (added at the end).

⇒Common Prefixes:

• Auto- (Self): Automation, Autonomous
• Micro- (Small): Microprocessor, Microscope
• Poly- (Many): Polygon, Polymer
• Anti- (Against): Antivirus, Anticlockwise

⇒Common Suffixes (change word class):

• Verb to Noun: -tion (Automate $\rightarrow$ Automation), -ment (Align $\rightarrow$ Alignment)
• Noun to Adjective: -al (Logic $\rightarrow$ Logical), -ic (Magnet $\rightarrow$ Magnetic)

Understanding sentence types allows you to vary the rhythm of your writing.

• Simple Sentence: One independent clause (one subject, one verb). The server crashed.
• Compound Sentence: Two independent clauses joined by a coordinating conjunction (FANBOYS: For, And, Nor, But, Or, Yet, So). The server crashed, BUT the backup engaged immediately.
• Complex Sentence: One independent clause and at least one dependent clause joined by a subordinating conjunction (because, although, if, since). BECAUSE the server crashed, the system went offline.

Technical writing favors a mix of Simple and Complex sentences.

⇒Unit 1 Mastery

• Can you identify when to use 'has' vs 'have' with collective nouns?
• What is the difference between Affect and Effect?
• Convert "The engineer designed a new algorithm" into Passive Voice.
• Convert "He said, 'I will test the code tomorrow'" into Indirect Speech.
• Correct this sentence: "The data comprises of 100 entries."
• Identify the sentence type: "Although it was late, we finished the deployment."