when none of them are ever any good 
(ROOT (SBAR (WHADVP (WRB when)) (S (NP (NP (NN none)) (PP (IN of) (NP (PRP them)))) (VP (VBP are) (ADVP (RB ever)) (NP (DT any) (JJ good))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (NP (NN )) (PP (IN ) (NP (PRP )))) (VP (VBP ) (ADVP (RB )) (NP (DT ) (JJ ))))))