I did n't see her anywhere . I saw her nowhere . A tag question is a reduced polar interrogative clause which is attached, as it were, to the end of a main clause. In the most common variety, the main clause is a declarative. The Subject in the tag question, finally, is a personal pronoun with the same reference as the Subject in the main clause.
Tag questions are normally what are often called reverse-polarity tags .
This means that the polarity of the tag question is normally the reverse, or the opposite, of the polarity of the main clause. The tag question can have either falling or rising tone. Falling tone indicates that the speaker expects the hearer to agree with the statement made by means of the main clause. With rising tone in the tag question, it expresses surprise at the message conveyed by the main clause. They have left.