Shall we finish it off?
( ( Shall ( we ( ( finish it ) off ) ) ) ? )
(ROOT (SQ (VP (VB Shall) (S (NP (PRP we)) (VP (VB finish) (NP (PRP it)) (PRT (RP off))))) (. ?)))
Should it remain unfinished?
( Should ( it ( ( remain unfinished ) ? ) ) )
(ROOT (SQ (NNP Should) (NP (PRP it)) (VP (VB remain) (NP (JJ unfinished))) (. ?)))