Oh, my friend, have I not said to you all along that I have no proofs. 
( Oh ( , ( ( my friend ) ( , ( ( have ( I ( not ( ( ( said ( to you ) ) ( all along ) ) ( that ( I ( have ( no proofs ) ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (INTJ (UH Oh)) (, ,) (NP (PRP$ my) (NN friend)) (, ,) (VP (VB have) (S (NP (PRP I)) (ADVP (RB not)) (VP (VBD said) (PP (TO to) (NP (PRP you))) (ADVP (DT all) (IN along)) (SBAR (IN that) (S (NP (PRP I)) (VP (VBP have) (NP (DT no) (NNS proofs)))))))) (. .)))
I will be able to find some proof soon.
( I ( ( will ( be ( able ( to ( ( find ( some proof ) ) soon ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD will) (VP (VB be) (ADJP (JJ able) (S (VP (TO to) (VP (VB find) (NP (DT some) (NN proof)) (ADVP (RB soon)))))))) (. .)))