Question tags (or tag questions) turn a statement into a question.
What they are used for: Question tags are generally used to confirm what you believe to be true.
How they are made:Question tags are formed by combining an auxiliary verb (e.g. be, do, have) with the subject’s pronoun (e.g. I, you, she, it, they).
Remember, if the main clause is positive, the question tag is negative, and if the main clause is negative, then the question tag is positive. e.g. It's cold today (positive), isn't it (negative)? And: It isn't that cold today (negative), is it (positive)?
Examples:Using English Question Tags * You’re a teacher, aren’t you? (i.e. I think you are a teacher, is that true?)
* The boss has a bad temper, doesn’t he? (i.e. I think the boss has a bad temper, do you agree?)
* The book I gave you wasn't enjoyable, was it? (i.e. I don't think the book was good, do you agree?)
* The chef wastes a lot of food, doesn’t he? (i.e. I think the chef wastes food, do you agree?)
* This lesson was enjoyable, wasn't it? (i.e. I think this lesson was enjoyable, and I think you agree.)