I've done horrible, let's just say horrible really, really bad.
( ( I ( 've ( done horrible ) ) ) ( , ( ( let 's ) ( just ( ( say ( ( ( horrible really ) , ) ( really bad ) ) ) . ) ) ) ) )
(ROOT (S (S (NP (PRP I)) (VP (VBP 've) (VP (VBN done) (S (ADJP (JJ horrible)))))) (, ,) (NP (NNP let) (POS 's)) (ADVP (RB just)) (VP (VBP say) (ADJP (ADJP (JJ horrible) (RB really)) (, ,) (ADJP (RB really) (JJ bad)))) (. .)))
I've done something so awful I can hardly bear to think about it.
( I ( ( 've ( ( done something ) ( ( so awful ) ( I ( ( can hardly ) ( bear ( to ( think ( about it ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP 've) (VP (VBN done) (NP (NN something)) (S (ADJP (RB so) (JJ awful)) (SBAR (S (NP (PRP I)) (VP (MD can) (ADVP (RB hardly)) (VP (VB bear) (S (VP (TO to) (VP (VB think) (PP (IN about) (NP (PRP it))))))))))))) (. .)))