Not that I can remember, no, uh uh.
( ( ( ( ( Not ( that I ) ) ( can remember ) ) , ) ( ( no , ) ( uh uh ) ) ) . )
(ROOT (S (S (NP (RB Not) (DT that) (PRP I)) (VP (MD can) (VP (VB remember)))) (, ,) (FRAG (INTJ (INTJ (UH no)) (, ,) (INTJ (UH uh) (UH uh)))) (. .)))
I can not remember what happened yesterday. 
( I ( ( ( can not ) ( remember ( what ( happened yesterday ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD can) (RB not) (VP (VB remember) (SBAR (WHNP (WP what)) (S (VP (VBD happened) (NP (NN yesterday))))))) (. .)))