Um, I'll definitely be ready for the change.
( Um ( , ( I ( ( ( 'll definitely ) ( be ( ready ( for ( the change ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Um)) (, ,) (NP (PRP I)) (VP (MD 'll) (ADVP (RB definitely)) (VP (VB be) (ADJP (JJ ready) (PP (IN for) (NP (DT the) (NN change)))))) (. .)))
I will not be prepared for the change. 
( I ( ( ( will not ) ( be ( prepared ( for ( the change ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD will) (RB not) (VP (VB be) (VP (VBN prepared) (PP (IN for) (NP (DT the) (NN change)))))) (. .)))