The present study invesitigates the aterntive use of the nominal structure in the Sahih AL-Bukhari .What characterizes Arabic language is the flexibility in expression of intentions and objectives that the speaker wants to convey to the addressee that possesses a rich linguistic knowledge which enables its users to be very expressive in terms of linguistic performances to a degree that makes the receiver more interactive to linguistic massages both mentally and psychologically, the mentioned flexibility that can be seen in building structures; proposition and delay, deletion, addition, changing it according to masculine and feminize or numerically singular two or plural and neglects the terms of reference grammar and the separation and opposition between inseparable concepts, and other basic phenomena are steady rules in building linguistic structures, observed in the formulation of phrases through the expression of time interchangeably, such as expressing past with the present tense, or the expression of future time with past tense, or to deviate from derivative to derivative in another context, which could fall under the heading: (shifts from morphological formulas), or: (the exchange between the semantic structures) .