I said to him, But you know, I'm your friend, tell me why.
( ( ( ( ( I ( said ( to him ) ) ) , ) But ) ( you ( ( know ( , ( ( I ( 'm ( your friend ) ) ) , ) ) ) ( ( tell me ) why ) ) ) ) . )
(ROOT (S (S (NP (PRP I)) (VP (VBD said) (PP (TO to) (NP (PRP him))))) (, ,) (CC But) (S (NP (PRP you)) (VP (VP (VBP know)) (PRN (, ,) (S (NP (PRP I)) (VP (VBP 'm) (NP (PRP$ your) (NN friend)))) (, ,)) (VP (VB tell) (NP (PRP me)) (FRAG (WHADVP (WRB why)))))) (. .)))
I told him as an enemy I would this it to my full advantage. 
( I ( ( ( told him ) ( as ( ( an enemy ) ( I ( would ( ( this it ) ( to ( my ( full advantage ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD told) (NP (PRP him)) (PP (IN as) (NP (NP (DT an) (NN enemy)) (SBAR (S (NP (PRP I)) (VP (MD would) (VP (S (NP (DT this) (PRP it))) (PP (TO to) (NP (PRP$ my) (JJ full) (NN advantage)))))))))) (. .)))