when he should have shaped the story to show us why it 's compelling 
(ROOT (SBAR (WHADVP (WRB when)) (S (NP (PRP he)) (VP (MD should) (VP (VB have) (VP (VBN shaped) (NP (DT the) (NN story)) (S (VP (TO to) (VP (VB show) (NP (PRP us)) (SBAR (WHADVP (WRB why)) (S (NP (PRP it)) (VP (VBZ 's) (ADJP (JJ compelling))))))))))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (MD ) (VP (VB ) (VP (VBN ) (NP (DT ) (NN )) (S (VP (TO ) (VP (VB ) (NP (PRP )) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBZ ) (ADJP (JJ ))))))))))))))