You and I have done some important work together.
( ( ( You and ) I ) ( ( have ( ( done ( some ( important work ) ) ) together ) ) . ) )
(ROOT (S (NP (PRP You) (CC and) (PRP I)) (VP (VBP have) (VP (VBN done) (NP (DT some) (JJ important) (NN work)) (ADVP (RB together)))) (. .)))
The work we have done together has helped a lot of people.
( ( ( The work ) ( we ( have ( done together ) ) ) ) ( ( has ( helped ( ( a lot ) ( of people ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN work)) (SBAR (S (NP (PRP we)) (VP (VBP have) (VP (VBN done) (ADVP (RB together))))))) (VP (VBZ has) (VP (VBN helped) (NP (NP (DT a) (NN lot)) (PP (IN of) (NP (NNS people)))))) (. .)))