A Brief Account of the Base Component of Transformational Generative Grammar

Purpose: To briefly introduce base component of transformational generative grammar (TGG). Method: The study is mainly descriptive where previous and related studies are reviewed and presented to reach a view about the base component of TGG. Results: Base component serves as input to two basic elements of language which are semantic rules and deep structure. Semantic rules give semantic representation. Deep structure leads to transformational rules or transformations which again lead to surface structure. Conclusions: Base component has been introduced and modified in different stages under standard theory (ST) and then it has been modified to extended standard theory (EST). Later on and as a recent modification of this theory, it has been introduced in terms of what is known in nowadays as revised extended standard theory (REST).