you 've missed the first half-dozen episodes and probably 
(ROOT (S (NP (PRP you)) (VP (VP (VBP 've) (VP (VBN missed) (NP (DT the) (JJ first) (QP (NN half) (HYPH -) (CD dozen)) (NNS episodes)))) (CC and) (ADVP (RB probably)))))
(ROOT (S (NP (PRP )) (VP (VP (VBP ) (VP (VBN ) (NP (DT ) (JJ ) (QP (NN ) (HYPH ) (CD )) (NNS )))) (CC ) (ADVP (RB )))))