Be forewarned that the download takes quite a while via modem.
( ( Be ( forewarned ( that ( ( the download ) ( takes ( ( quite ( a while ) ) ( via modem ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Be) (VP (VBN forewarned) (SBAR (IN that) (S (NP (DT the) (NN download)) (VP (VBZ takes) (NP (NP (RB quite) (DT a) (NN while)) (PP (IN via) (NP (NN modem))))))))) (. .)))
A modem download of this program should take no time at all.
( ( ( A ( modem download ) ) ( of ( this program ) ) ) ( ( should ( ( take ( no time ) ) ( at all ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN modem) (NN download)) (PP (IN of) (NP (DT this) (NN program)))) (VP (MD should) (VP (VB take) (NP (DT no) (NN time)) (ADVP (IN at) (DT all)))) (. .)))