if she had to sit through it again , she should ask for a raise 
(ROOT (S (SBAR (IN if) (S (NP (PRP she)) (VP (VBD had) (S (VP (TO to) (VP (VB sit) (PP (IN through) (NP (PRP it))) (ADVP (RB again)))))))) (, ,) (NP (PRP she)) (VP (MD should) (VP (VB ask) (PP (IN for) (NP (DT a) (NN raise)))))))
(ROOT (S (SBAR (IN ) (S (NP (PRP )) (VP (VBD ) (S (VP (TO ) (VP (VB ) (PP (IN ) (NP (PRP ))) (ADVP (RB )))))))) (, ) (NP (PRP )) (VP (MD ) (VP (VB ) (PP (IN ) (NP (DT ) (NN )))))))