Great mistake to say too much.
( Great ( ( mistake ( to ( say ( too much ) ) ) ) . ) )
(ROOT (S (NP (NNP Great)) (VP (VBZ mistake) (S (VP (TO to) (VP (VB say) (ADVP (RB too) (RB much)))))) (. .)))
It was wrong to say too much.
( It ( ( was ( wrong ( to ( say ( too much ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBD was) (ADJP (JJ wrong) (S (VP (TO to) (VP (VB say) (ADVP (RB too) (RB much))))))) (. .)))