when she should be building suspense 
(ROOT (SBAR (WHADVP (WRB when)) (S (NP (PRP she)) (VP (MD should) (VP (VB be) (VP (VBG building) (NP (NN suspense))))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (MD ) (VP (VB ) (VP (VBG ) (NP (NN ))))))))