Short questions at the end of statements: isn't it?, don't you?, can't she?
Positive statement + negative tag (auxiliary + n't + pronoun)
Negative statement + positive tag (auxiliary + pronoun)
Tags are mini-questions at the end
💡 Use same auxiliary as main clause. No auxiliary? Use do/does/did. I am → aren't I (exception).
✓She can swim, can't she?
✗She can swim, can she?
Positive statement needs negative tag.
✓They don't like coffee, do they?
✗They don't like coffee, don't they?
Negative statement needs positive tag.
✓I'm right, aren't I?
✗I'm right, amn't I?
Exception: I am uses aren't I.