You did, didn't you?"
( You ( ( ( ( did , ) ( ( did n't ) you ) ) ? ) '' ) )
(ROOT (S (NP (PRP You)) (VP (VBD did) (, ,) (SQ (VBD did) (RB n't) (NP (PRP you)))) (. ?) ('' '')))
You didn't mean to do that, did you?
( ( You ( ( did n't ) ( mean ( to ( do that ) ) ) ) ) ( , ( ( did you ) ? ) ) )
(ROOT (SINV (S (NP (PRP You)) (VP (VBD did) (RB n't) (VP (VB mean) (S (VP (TO to) (VP (VB do) (NP (DT that)))))))) (, ,) (VP (VBD did)) (NP (PRP you)) (. ?)))