Syntactic Development in First Language Acquisition(A case study of a child between 32 and 48 months)

In this research paper, the researcher prominently discusses the process of syntactic development in first language acquisition by casting light on the fact that how a child internalizes and composes flawless syntactic rules and structures out of incomplete and insufficient corpus of data (Language Input). What sort of mechanism (built-in-device, Chomsky’s term) enables a child to fabricate complex structures before knowing the rudiments of syntax? The study investigates the syntactic developmental process of an Iranian child during 32 and 48 months of life.By observing and recording 
language production, the writer analyzed and compared the results with some related theorettical assumptions concerning Generative Grammar. The main question being answered in the research is the indicative of the syntactic development of an Iranian child as to be 1- A member of scientific society, Azad university.2- M.A.graduate in linguistics, allame Tabatabai University.20 / Pazand Quarterly compared with those of other children acquiring other languages to 
approve or disapprove of the university view of generativists like Chomsky, Lenneberg, Lebaux, Ingram, and Fletcher. The results of the study approves of the regularities and systematic ordering of the universals of language acquisition because there are a great number of similarities between the processes of the Iranian child language development with those of Chomsky’s theories