TAG QUESTION

a.       Jack can come, can’t he? b.      Fred can’t come,can he?	A tag question is a question added at the end of a sentences. Speaker uses tag question chiefly to make sure their information is correct or to seek agrrment
AFFIRMATIVE SENTENCES   +   NEGATIVE TAG                        AFFIRMATIVE ANSWER EXPECTED Mary is here         Isn’t she?                                          Yes,she is   You like tea           don’t you?                                        Yes, I do
NEGATIVE SENTENCE     +   AFFIRMATIVE TAG                    NEGATIVE ANSWER EXPECTED                 Mary isn’t here,           Is she ?                                         No, she isn’t             You don’t like tea,           do you?                                        No,I don’t
This/that is your book, isn’t it? These/those are yours, aren’t they?		The tag question for this/that = it The tag pronoun for these/those =they
There is a meeting tonight, isn’t there?		In sentences with there+be,there is used in the tag