you might want to check it out 
(ROOT (S (NP (PRP you)) (VP (MD might) (VP (VB want) (S (VP (TO to) (VP (VB check) (NP (PRP it)) (PRT (RP out)))))))))
(ROOT (S (NP (PRP )) (VP (MD ) (VP (VB ) (S (VP (TO ) (VP (VB ) (NP (PRP )) (PRT (RP )))))))))