A question tag is a short phrase that is added to the end of a statement to turn it into a question. They are more common in speaking than writing.  Here are some examples of question tags: "You haven't seen this film, have you?" "Your sister lives in Spain, doesn't she?" "He can't drive, can he?" "She's a doctor, isn't she?"   Question tags can be used for: Making a statement into a question Confirming something Getting the audience to agree with a statement  Here are some rules for forming question tags: - If the statement is positive, the tag is usually negative and vice... Show more

A question tag is a short phrase that is added to the end of a statement to turn it into a question. They are more common in speaking than writing. 

Here are some examples of question tags:
"You haven't seen this film, have you?"
"Your sister lives in Spain, doesn't she?"
"He can't drive, can he?"
"She's a doctor, isn't she?"  

Question tags can be used for:
Making a statement into a question
Confirming something
Getting the audience to agree with a statement 

Here are some rules for forming question tags:
- If the statement is positive, the tag is usually negative and vice versa.
- Statements with negative adverbs like "never", "seldom", "hardly", and "rarely" are treated like negative statements, so the question tag is normally positive.
- When the subject is the first person singular, use the verb form "are/aren't I".
- After "Let's", use "shall we". 

The tone of the speaker indicates whether the question is a real question or if the speaker is looking for agreement. 

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