position are very important for the declensional guiding . I cited also the adressee's role in this process .

٣) The third research was "The free movement of Sibawayh in his declensional guiding in case of nonexistence of the meaning's obscurity . laying dwon the syntactical rules . Sibawayh، in this research، gave all the possible declensional guidings for a particulare declensional issue as long as there is not an evidence prevents these declensional guiding . We called these declensional guidings the free declensional guiding .

The third chapter is "The context role in laying dwon the syntactical rules " . It encompassed five researches:

a) The context and Nominal Sentence . I brought to light the relationship between the context and the Subject of the Nominal Sentence and the Predicate .

b) The context and the Verbal Sentence . In this research، I shed light upon the context's impact on the entity of the Verbal Sentence .

I also elucidated:

» The context's effect and the arrangement of the Verbal Sentence's elements .

» The context and actuating Active Participle .

» The context and the Particles of accusative present simple .

» The context and the Unrestricted Object and Ellipse (or Elision) in the Verbal Sentence .

c) "The context and Appositive " . In it، we manifested the semantic and contextual posts which the Apposition، syndetic serial، the Adjective (Epithet)، and confirming . In addition to the previous issues، I point out to the declensional Inception which is associated the syndetic particles .

d) " The context and declensional styles " . We discussed the pertinence admist the Interrogative، the Negative، the Vocative، the Instigation، Specification، the Superlative adjective، Exception، the Oath، Coutioning، Accusation of pity and Accusation of Glorification .