She could should an friend Not help .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 She)) (VP_4 (MD_0 could) (VP_1 (ATVP_1 (MD_0 should) (ADVP_0 (NP_5 (DT_0 an) (NN_2 friend)) (RB_1 Not))) (VP_1 (VB_0 help))))) (DOT_0 .)))