But the real dirty work had already been done.
( But ( ( the ( real ( dirty work ) ) ) ( ( ( had already ) ( been done ) ) . ) ) )
(ROOT (S (CC But) (NP (DT the) (JJ real) (JJ dirty) (NN work)) (VP (VBD had) (ADVP (RB already)) (VP (VBN been) (VP (VBN done)))) (. .)))
There was still lots of dirty work left to be completed.
( There ( ( ( was still ) ( lots ( of ( ( dirty work ) ( left ( to ( be completed ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBD was) (ADVP (RB still)) (NP (NP (NNS lots)) (PP (IN of) (NP (NP (JJ dirty) (NN work)) (VP (VBN left) (S (VP (TO to) (VP (VB be) (VP (VBN completed)))))))))) (. .)))