IONI — Institute of NLP India

Deep Structure & Surface Structure

From transformational grammar: the complete internal representation of an experience (deep structure) versus the reduced sentence that carries it (surface structure) — deletion, distortion and generalisation happen in the translation.

The Meta Model is literally a set of recovery questions from surface back toward deep structure: "I failed" (surface) omits what, when, by whose standard (deep). Most miscommunication is two surface structures being mistaken for two deep ones.

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ShriViral Manek, Institute of NLP India · reviewed 30 Sept 2026