The given article analyzes such cases of interaction of d- and s- structures to which transformational model as a mechanism of switching over from one level to another cannot be applied. Sentences with unclear d-structure are analyzed and systematized. Functioning of speech mechanism and factors influencing it are viewed through the context of a dialogical situation as the most important component of communication. The author states this dialogical situation often excludes the possibility of correcting the thought (in case of a slip of the tongue) which has already been pronounced.

deep structure (d-structure), surface structure (s-structure), speech mechanism, branched constructions, semantic component

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