Syntax (Deep and Surface structure) | lecture: 18 (Linguistics- I)

Main ideas & concepts covered

• Lecture purpose/topic

  • This is the 18th lecture in an Introduction to Linguistics course.
  • Focus: Syntax, specifically the distinction between deep structure and surface structure.
  • Audience: students of English philology, including those preparing for teaching positions (graduate/undergraduate).

• What “syntax” means

  • The term syntax comes from Greek, meaning “putting together” / “arrangement.”
  • In linguistics, syntax concerns the combination and ordering of elements in sentences—i.e., how linguistic elements are arranged to form structures.

• How syntax is studied: two approaches

  • Earlier approaches
    • Attempted to give a precise description of the linear sequence/order of elements in a sentence.
    • Conceptually, it involves arranging elements like subject, predicate, object.
  • More modern approaches
    • Emphasize a hidden system of rules that generates sentences.
    • Research focuses on the rule system used to construct or produce grammatical sentences.

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Key focus: Deep Structure vs. Surface Structure (Chomsky/Transformational Grammar)

• Origin of the terms

  • The terms deep structure and surface structure were introduced by Noam Chomsky as part of his work on transformational grammar.
  • The lecture notes that transformational grammar will be covered later, but defines the distinction now.

• Core distinction

  • Deep structure
    • Related to meaning/semantic content.
    • Represents the abstract structure of what a speaker “wants to express” (thoughts, ideas, feelings).
    • Determines a sentence’s semantic content.
  • Surface structure
    • Related to grammar/wording—the linguistic expression of deep meaning.
    • Represents the phonetic/observable form of the sentence: how meaning is realized in spoken or written language.
    • Essentially the “reproduced”/actual sentence form.

• Same meaning, different surface form (active vs. passive)

  • The lecture contrasts:
    1. “Charlie broke the window.” (active)
    2. “The window was broken by Charlie.” (passive)
  • Claim:
    • They have the same meaning (same deep structure).
    • They have different grammatical structures (different surface structures).

• Illustrative reflection (students’ question)

  • The lecture prompts: have you ever had something in your mind that words couldn’t fully express?
  • Interpretation:
    • What’s in the mind corresponds to deep structure.
    • Expressing it through actual sentences corresponds to surface structure.

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Structural units and building sentences (syntactic structure)

• Syntactic units

  • Syntax examines grammatical elements such as:
    • morphemes, words, phrases, clauses, sentences

• How language structures are built

  • A hierarchical chain is presented:
    • morphemes → words → phrases → clauses → sentences
  • The sequence moves from smallest units (morpheme) to largest units (sentence).

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Structural ambiguity in syntax (example-based)

• Definition of structural ambiguity

  • Ambiguity arises from how a sentence’s structure can lead to different interpretations.
  • The lecture frames this as the sentence having a double meaning due to structure.

• Example given

  • Sentence: “I once shot an elephant in my pajamas.”
  • Two possible interpretations:
    • (1) The speaker shot the elephant while wearing pajamas.
    • (2) The speaker shot an elephant that was in pajamas (depending on structural reading).
  • This is presented as an example of structural ambiguity.

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Methodology / instruction-style points

• When studying syntax, distinguish between:

  • Linear/sequence-focused analysis (older approach)
    • Describe the order of elements in sentences (e.g., subject–predicate–object).
  • Rule-based analysis (modern approach)
    • Describe the hidden grammatical rules that generate sentences.

• When applying deep vs. surface structure, treat:

  • Deep structure as:
    • The abstract meaning/semantic content a speaker intends.
  • Surface structure as:
    • The grammatical/word-level and phonetic form used to express that meaning.

• When analyzing syntactic structure, use the unit hierarchy:

  • morpheme → word → phrase → clause → sentence

• When identifying structural ambiguity, look for:

  • Sentences where the structure allows multiple interpretations, producing double meanings (e.g., the “elephant in my pajamas” sentence).

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Speakers / sources featured

• Speaker

  • Not explicitly identified in the subtitles (lecture narrator).

• Sources/authorities mentioned

  • Noam Chomsky: introduced deep structure/surface structure in the context of transformational grammar.
  • George Yule: the lecture notes that points were taken from the 6th edition of The Study of Language.