They are celebrating their victory Add aquestion tag.
Answers
We add question tags to the end of statements to turn them into questions. They are used in spoken language, especially when we want to check something is true, or invite people to agree with us. We add a clause in the form of a question at the end of a sentence.
Tag questions (or question tags) turn a statement into a question. They are often used for checking information that we think we know is true.
Tag questions are made using an auxiliary verb (for example: be or have) and a subject pronoun (for example: I, you, she). Negative question tags are usually contracted: It's warm today, isn't it (not 'is it not')
Usually if the main clause is positive, the question tag is negative, and if the main clause is negative, it's positive. For example: It's cold (positive), isn't it (negative)? And: It isn't cold (negative), is it (positive)?
If the main clause has an auxiliary verb in it, you use the same verb in the tag question. If there is no auxiliary verb (in the present simple and past simple) use do / does / did (just like when you make a normal question).
There is one weird exception: the question tag after I am is aren't I.
For example: I'm in charge of the food, aren't I?
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