The Syntactic Formation of the Uses of Haythu (where ) in the Holy Koran and its References

The Research deals with the word haythu (where ) in the Holy Koran in its uses and references .This word belongs to the adverbs that receive the attention of the linguists and grammarians .So ,the research examines various means possessed by the Arabic dialects and the reason behind its uniflection ,the acceptance of joining a preposition and being added to a single word or a sentence .Also , the research shows its positions in the Holy Koran with reference to the opinions of the Koran interpreters and grammarians .