I didn't hit nothing.
( I ( ( ( did n't ) ( hit nothing ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD did) (RB n't) (VP (VB hit) (NP (NN nothing)))) (. .)))
I didn't hit anything.
( I ( ( ( did n't ) ( hit anything ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD did) (RB n't) (VP (VB hit) (NP (NN anything)))) (. .)))