Tree diagrams - please help me!

Is this right???
1) John said Cathy thought George helped Mary.

SENTENCE
NOUN PHRASE + VERB PHRASE
John said Cathy thought George helped Mary VERB PHRASE= VERB + SENTENCE???
said Cathy thought George helped Mary
SENTENCE= NOUN PHRASE + VERB PHRASE
George helped Mary
VERB PHRASE = VERB + NOUN PHRASE
helped Mary
2) Any experienced journalist knows that he can sometimes manage to hire theunsuspecting polititian into making ungarded comments.

Oh, my God! How is this supposed to go?!
3) Annie wrecked the man with an umbrella.

How is this done?
4) Did I get this right?

of Mary - PREPOSITIONAL PHRASE = PREPOSITION (of) (Mary) NOUN PHRASE = NOUN (Mary)
fond of Mary - ADJECTIVE PHRASE? = ADJECTIVE (fond) + PREPOSITIONAL PHRASE (of Mary)
PREPOSITIONAL PHRASE = PREPOSITION (of) (Mary)
NOUN PHRASE = NOUN (Mary)
become fond of Mary - VERB PHRASE = VERB (become) + ADJECTIVE PHRASE (fond of Mary)
ADJECTIVE PHRASE? = ADJECTIVE (fond) +
PREPOSITIONAL PHRASE (of Mary)
PREPOSITIONAL PHRASE = PREPOSITION (of)
(Mary)
NOUN PHRASE = NOUN (Mary)
5) My friend will open the door.

SENTENCE = NP (My friend) + VP (will open the door) NP= PRON (my) + N (friend)
VP= VP (will open) + N (the door)
VP= Auxiliary Verb?? (will) + V (open)??
NP= DET (the) + N (door)