English Communication

Grammar Essentials

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A strong grammatical foundation is essential for clear written and spoken English. Grammar is the set of rules that governs how words are used to form sentences. This chapter covers parts of speech, sentence structure, tenses, articles, prepositions, and common grammatical errors with corrections.

Parts of Speech

Lecture 1

  • Noun — Name of a person, place, thing, or idea. e.g. engineer, college, freedom
  • Pronoun — Replaces a noun. e.g. he, she, they, it, we
  • Verb — Expresses action or state of being. e.g. run, write, is, become
  • Adjective — Describes or modifies a noun. e.g. clear, technical, efficient
  • Adverb — Modifies a verb, adjective, or another adverb. e.g. quickly, very, always
  • Preposition — Shows relationship between noun and other words. e.g. in, on, at, between, under
  • Conjunction — Joins words, phrases, or clauses. e.g. and, but, because, although, or
  • Interjection — Expresses sudden emotion. e.g. Oh!, Wow!, Oops!

Sentence Structure

Lecture 2

  • Simple Sentence — One independent clause.
    • e.g. She writes code.
  • Compound Sentence — Two independent clauses joined by a conjunction.
    • e.g. She writes code, and he tests it.
  • Complex Sentence — One independent clause + one dependent clause.
    • e.g. Although she was tired, she completed the assignment.
  • Compound-Complex Sentence — Two independent clauses + at least one dependent clause.
    • e.g. Although she was tired, she completed the assignment, and he reviewed it.
  • Subject-Verb Agreement:
    • Singular subject → singular verb: He runs.
    • Plural subject → plural verb: They run.
    • Common error: The team are playing. → Correct: The team is playing.

Tenses

Lecture 3

  • Present Tense:
    • Simple: She writes.
    • Continuous: She is writing.
    • Perfect: She has written.
    • Perfect Continuous: She has been writing for two hours.
  • Past Tense:
    • Simple: She wrote.
    • Continuous: She was writing.
    • Perfect: She had written before the deadline.
    • Perfect Continuous: She had been writing for hours.
  • Future Tense:
    • Simple: She will write.
    • Continuous: She will be writing.
    • Perfect: She will have written the report by Monday.

Articles and Prepositions

Lecture 4

  • Articles:
    • a — used before consonant sounds: a university, a book
    • an — used before vowel sounds: an apple, an hour
    • the — used for specific reference: the CEO of the company
    • No article: general reference. e.g. Engineers solve problems.
  • Prepositions of Time:
    • in — months, years, seasons: in May, in 2026, in winter
    • on — days and dates: on Monday, on 24th May
    • at — specific times: at 5 PM, at noon, at midnight
  • Prepositions of Place:
    • in — enclosed spaces: in the room, in the box
    • on — surfaces: on the table, on the floor
    • at — specific points: at the door, at the station

Common Grammatical Errors and Corrections

Lecture 5

  • ❌ He don't know. ✅ He doesn't know.
  • ❌ I am knowing him since years. ✅ I have known him for years.
  • ❌ She is more smarter than him. ✅ She is smarter than him.
  • ❌ I went to the college. ✅ I went to college. (no article for institutions in general)
  • ❌ He said me to come. ✅ He told me to come.
  • ❌ Despite of the rain, we went. ✅ Despite the rain, we went.
  • Confusing homophones: their / there / they're and your / you're and its / it's

Grammar is the backbone of all communication. Even one grammatical error in a professional email or report can undermine your credibility. Practice regularly, read widely, and always proofread before sending or submitting any written work.

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