um pardon me
( ( um pardon ) me )
(ROOT (SINV (VP (VBP um) (NP (NN pardon))) (NP (PRP me))))
I don't apologize.
( I ( ( ( do n't ) apologize ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP do) (RB n't) (VP (VB apologize))) (. .)))