Tips and techniques.
There are two kinds of tag question.
1.positive tag:If the given sentence is a negative sentence,one should put a positive tag at the end of that sentence.for example:
I can't go,can I?
He doesn't come,does he?
2.Negative tag:If the given sentence is an affirmative sentence ,one should put a negative tag at the end of that sentence. For example.
We should go ,shouldn't we?
He came,didn't he?
If there is any negative word i.e.not/no/none/no one/no body/nothing/neither/never/rarely/seldom/little/few/scarcely/hardly/ no sooner.a positive tag must be used there.and if there is seen no negative word in the sentence,a negative tag such as a.v.n't *sub/pronoun must be used there.