to proceed as the world implodes 
(ROOT (S (VP (TO to) (VP (VB proceed) (SBAR (IN as) (S (NP (DT the) (NN world)) (VP (VBZ implodes))))))))
(ROOT (S (VP (TO ) (VP (VB ) (SBAR (IN ) (S (NP (DT ) (NN )) (VP (VBZ ))))))))