I will some day, if you ask me, she promised him, smiling. 
( ( I ( will ( ( ( some day ) , ) ( if ( you ( ask me ) ) ) ) ) ) ( , ( she ( ( ( ( promised him ) , ) smiling ) . ) ) ) )
(ROOT (S (S (NP (PRP I)) (VP (MD will) (S (NP (NP (DT some) (NN day)) (, ,) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP ask) (NP (PRP me))))))))) (, ,) (NP (PRP she)) (VP (VBD promised) (NP (PRP him)) (, ,) (S (VP (VBG smiling)))) (. .)))
She swore to him that if he asked her someday, she would. 
( She ( ( ( swore ( to him ) ) ( that ( ( if ( he ( ( asked her ) someday ) ) ) ( , ( she would ) ) ) ) ) . ) )
(ROOT (S (NP (PRP She)) (VP (VBD swore) (PP (TO to) (NP (PRP him))) (SBAR (IN that) (S (SBAR (IN if) (S (NP (PRP he)) (VP (VBD asked) (NP (PRP her)) (ADVP (RB someday))))) (, ,) (NP (PRP she)) (VP (MD would))))) (. .)))