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English Sentence Structure Overview

Aug 18, 2025

Overview

This lecture provided a concise review of sentence structure in English grammar, covering sentence fragments, run-on sentences, clause coordination, subordination, and pronoun reference clarity.

Sentence Fragments

  • A sentence fragment is a group of words that does not express a complete thought.
  • Fragments lack a subject, a verb, or a complete idea.
  • Examples include missing subjects, missing verbs, or incomplete ideas.
  • Phrases (groups of words acting as one part of speech, no subject/verb) are also fragments if they stand alone.

Complete Sentences

  • A complete sentence requires a subject, a verb, and a complete thought.
  • Short sentences can be complete if they meet these requirements (e.g., "John ran home").

Subordinate Clauses and Conjunctions

  • Subordinate clauses begin with subordinating conjunctions (e.g., because, since, although) and cannot stand alone.
  • Subordinate clauses show relationships like cause/effect, time, condition, comparison, or place.
  • To correct fragments, ensure every sentence has a subject, verb, and expresses a complete thought.

Run-on Sentences & Comma Splices

  • A run-on is two complete sentences joined without correct punctuation or conjunction.
  • Common fix: separate sentences with a period, semicolon, or use a coordinating conjunction (FANBOYS: for, and, nor, but, or, yet, so).
  • A comma splice occurs if two sentences are joined only by a comma without a coordinating conjunction.

Coordination and Subordination of Clauses

  • Coordinate clauses are equal in rank, joined by conjunctions like and, but, or, so.
  • Subordinate clauses are unequal and depend on the main clause for meaning.
  • Choose connectives carefully to express logical relationships clearly.

Adverb and Adjective Clauses

  • Subordinate adverb clauses answer how, where, when, or why and modify verbs, adjectives, or adverbs.
  • Subordinate adjective clauses begin with who, whom, whose, that, which, or relative adverbs (when, where, why) and modify nouns.

Faulty Coordination & Pronoun References

  • Faulty coordination occurs when ideas of unequal importance are incorrectly joined as equals.
  • Pronouns must clearly refer to a specific antecedent noun to avoid ambiguity.
  • Ambiguous, general, or weak pronoun references can confuse the reader.

Key Terms & Definitions

  • Sentence Fragment — incomplete sentence missing subject, verb, or complete thought.
  • Complete Sentence — contains subject, verb, and expresses a complete idea.
  • Phrase — group of words acting as a single part of speech, lacking subject/verb.
  • Subordinate Clause — dependent clause that cannot stand alone.
  • Coordinating Conjunctions — words that connect clauses of equal rank ("FANBOYS").
  • Comma Splice — error where two sentences are joined only with a comma.
  • Antecedent — noun to which a pronoun refers.

Action Items / Next Steps

  • Review and practice identifying fragments, run-ons, and correct sentence structure.
  • Complete any assigned exercises on sentence completion and clause coordination.
  • Read more detailed grammar explanations or watch further videos if needed.