you 've endured a long workout without your pulse ever racing 
(ROOT (S (NP (PRP you)) (VP (VBP 've) (VP (VBN endured) (NP (DT a) (JJ long) (NN workout)) (PP (IN without) (S (NP (PRP$ your) (NN pulse)) (ADVP (RB ever)) (VP (NN racing))))))))
(ROOT (S (NP (PRP )) (VP (VBP ) (VP (VBN ) (NP (DT ) (JJ ) (NN )) (PP (IN ) (S (NP (PRP$ ) (NN )) (ADVP (RB )) (VP (NN ))))))))