as if he or she has missed anything 
(ROOT (SBAR (IN as) (IN if) (S (NP (PRP he) (CC or) (PRP she)) (VP (VBZ has) (VP (VBN missed) (NP (NN anything)))))))
(ROOT (SBAR (IN ) (IN ) (S (NP (PRP ) (CC ) (PRP )) (VP (VBZ ) (VP (VBN ) (NP (NN )))))))