I didn't do a lot of reading.
( I ( ( ( did n't ) ( do ( ( a lot ) ( of reading ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD did) (RB n't) (VP (VB do) (NP (NP (DT a) (NN lot)) (PP (IN of) (NP (NN reading)))))) (. .)))
I used to read all of the time.
( I ( ( used ( to ( read ( all ( of ( the time ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD used) (S (VP (TO to) (VP (VB read) (NP (NP (DT all)) (PP (IN of) (NP (DT the) (NN time)))))))) (. .)))