he forgets to make it entertaining 
(ROOT (S (NP (PRP he)) (VP (VBZ forgets) (S (VP (TO to) (VP (VB make) (S (NP (PRP it)) (ADJP (JJ entertaining)))))))))
(ROOT (S (NP (PRP )) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (S (NP (PRP )) (ADJP (JJ )))))))))