 It can't hurt you.
( It ( ( ( ca n't ) ( hurt you ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (MD ca) (RB n't) (VP (VB hurt) (NP (PRP you)))) (. .)))
That thing cannot damage you.
( ( That thing ) ( ( ( can not ) ( damage you ) ) . ) )
(ROOT (S (NP (DT That) (NN thing)) (VP (MD can) (RB not) (VP (VB damage) (NP (PRP you)))) (. .)))