چكيده فارسي :
Clause is a grammatical unite which is smaller than sentence and larger than phrases and words Like a phrase, a clause is a group of related words, but unlike a phrase, a clause has a subject and predicate. An independent clause, along with having a subject and predicate, expresses a complete thought and can stand alone as a sentence. On the contrary, a subordinate or dependent clause does not express a complete thought and therefore is not a sentence. A subordinate clause standing alone is the most common type of sentence fragment.