We need to talk to FAA.
( We ( ( need ( to ( talk ( to FAA ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP need) (S (VP (TO to) (VP (VB talk) (PP (TO to) (NP (NNP FAA))))))) (. .)))
It is imperative for us to communicate with FAA about these matters.
( It ( ( ( is ( imperative ( for us ) ) ) ( to ( ( communicate ( with FAA ) ) ( about ( these matters ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (JJ imperative) (PP (IN for) (NP (PRP us)))) (S (VP (TO to) (VP (VB communicate) (PP (IN with) (NP (NNP FAA))) (PP (IN about) (NP (DT these) (NNS matters))))))) (. .)))