I can't think of anything, but it's been nice chatting with you.
( ( ( ( ( I ( ( ca n't ) ( think ( of anything ) ) ) ) , ) but ) ( it ( 's ( been ( nice ( chatting ( with you ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP I)) (VP (MD ca) (RB n't) (VP (VB think) (PP (IN of) (NP (NN anything)))))) (, ,) (CC but) (S (NP (PRP it)) (VP (VBZ 's) (VP (VBN been) (ADJP (JJ nice) (S (VP (VBG chatting) (PP (IN with) (NP (PRP you))))))))) (. .)))
You and I have been communicating for some time.
( ( ( You and ) I ) ( ( have ( been ( communicating ( for ( some time ) ) ) ) ) . ) )
(ROOT (S (NP (PRP You) (CC and) (PRP I)) (VP (VBP have) (VP (VBN been) (VP (VBG communicating) (PP (IN for) (NP (DT some) (NN time)))))) (. .)))