چكيده فارسي :
Languages are different in their structures . Each language is a unique system of communication with its own sounds and morphemes . So , each language is self- contained within its own structure .The words in any language are arranged in certain patterns to produce grammatical structures . The sentence consists of the subject and the predicate . Some languages must contain a verb in their structures like English , others may contain a verb in their structures and may not like Arabic . Accordingly , it can be said that English sentence is a verbal one begins with the subject, whereas Arabic sentence is either verbal or nominal . Some grammarians give the name equational to the sentence which does not contain a verb
