Look, it's your skin, but you're going to be in trouble if you don't get busy.
( ( ( ( ( Look ( , ( it ( 's ( your skin ) ) ) ) ) , ) but ) ( you ( 're ( going ( to ( ( be ( in trouble ) ) ( if ( you ( ( do n't ) ( get busy ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (S (VP (VB Look))) (, ,) (NP (PRP it)) (VP (VBZ 's) (NP (PRP$ your) (NN skin)))) (, ,) (CC but) (S (NP (PRP you)) (VP (VBP 're) (VP (VBG going) (S (VP (TO to) (VP (VB be) (PP (IN in) (NP (NN trouble))) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP do) (RB n't) (VP (VB get) (ADJP (JJ busy)))))))))))) (. .)))
The boss will fire you if he sees you slacking off.
( ( The boss ) ( ( will ( ( fire you ) ( if ( he ( sees ( you ( slacking off ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN boss)) (VP (MD will) (VP (VB fire) (NP (PRP you)) (SBAR (IN if) (S (NP (PRP he)) (VP (VBZ sees) (S (NP (PRP you)) (VP (VBG slacking) (PRT (RP off))))))))) (. .)))