I was soon strong enough to move.
( I ( ( ( was soon ) ( ( strong enough ) ( to move ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD was) (ADVP (RB soon)) (ADJP (JJ strong) (RB enough) (S (VP (TO to) (VP (VB move)))))) (. .)))
I could move soon.
( I ( ( could ( move soon ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD could) (VP (VB move) (ADVP (RB soon)))) (. .)))