 The relative pronoun "yat" is declined like "tat", without exception replacing the initial "t" or "s" with "y".The demonstrative "tat" functions as a correlative pronoun when used in "independent clauses that 'complete' relative clauses to form complex sentences"—unlike in English (where one can say, for example, "The girl with whom you were speaking is my sister"), relative pronouns must be accompanied by correlative pronouns (which, if applied to the previous example, would be