I mean I'm sure I have read I just can't even remember what, Dr. Zhivago, I read that.
( I ( ( mean ( I ( 'm ( sure ( I ( have ( read ( I ( just ( ( ( ca n't ) even ) ( remember ( ( what ( , ( ( Dr. Zhivago ) , ) ) ) ( I ( read that ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP mean) (SBAR (S (NP (PRP I)) (VP (VBP 'm) (ADJP (JJ sure) (SBAR (S (NP (PRP I)) (VP (VBP have) (VP (VBN read) (SBAR (S (NP (PRP I)) (ADVP (RB just)) (VP (MD ca) (RB n't) (ADVP (RB even)) (VP (VB remember) (SBAR (WHNP (WP what)) (PRN (, ,) (NP (NNP Dr.) (NNP Zhivago)) (, ,)) (S (NP (PRP I)) (VP (VBP read) (NP (DT that)))))))))))))))))) (. .)))
I have read many textbooks in my lifetime.
( I ( ( have ( ( read ( many textbooks ) ) ( in ( my lifetime ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP have) (VP (VBN read) (NP (JJ many) (NNS textbooks)) (PP (IN in) (NP (PRP$ my) (NN lifetime))))) (. .)))