london british government say thursday key piece brexit legislation would debate parliament nov. 14 15 next stage expect tortuous lawmaking process test prime minister theresa may authority european union withdrawal bill central government plan leave eu march 2019 repeal laws make britain eu member transpose exist eu law british law face widespread criticism lawmakers party include may conservatives give government much power change laws guarantee parliament vote term brexit result bill passage parliament depend may fragile minority government able pacify rebel lawmakers say deadly serious try give parliament great say term eu exit much-anticipated first two days debate announce parliament andrea leadsom leader low house six days debate plan date announce bill pass first parliamentary test september next stage expect early lawmakers government say need time look hundreds propose change discuss nearly 400 amendments table look utmost seriousness brexit department spokeswoman say look forward continue debate work parliament ensure deliver function statute book exit day junior brexit minister steve baker late warn bill fail pass parliament time brexit day march 29 2019 hole would appear country laws also say government currently plan separate legislation implement term transitional agreement seek help smooth departure eu erect another potentially difficult parliamentary hurdle may spokeswoman late say soon know sure would require among propose change withdrawal bill several enough support conservative lawmakers defeat may command slim 13-seat work majority 650-seat parliament thank deal northern ireland democratic unionist party one potential conservative rebel nicky morgan warn government underestimate desire change bill deadly serious morgan former senior minister sack may last year tell parliament rebellion expect crystallise around government plan offer lawmakers vote final exit package promise currently write bill allow lawmakers accept deal government negotiate brussels reject leave eu without deal brexit minister david davis anger parliamentarians wednesday suggest vote could even come britain leave bloc force department issue clarification call parliament thursday morning explain word davis say expect vote take place december 2018 january 2019 refer eu prefer negotiate timetable despite clarification lawmakers signal want say exit deal would try force government make concessions next month parliament guarantee law vote give lawmakers great say sad reality ministerial assurances long good enough say opposition lawmaker stephen kinnock uk set date parliamentary showdown crucial brexit laws