brussels european union britain make progress late round divorce talk enough move next phase discussions transition period brexit future trade deal top negotiators say thursday constructive week yes yet term achieve sufficient progress work need come weeks months chief eu negotiator michel barnier tell reporters praise new dynamic create concessions make last week prime minister theresa may hop speech make florence friday would unblock three-month-old talk pave way eu open discussions post-brexit free trade deal allow barnier tell eu leaders sufficient progress three key divorce issue right expatriate citizens northern irish border britain exit bill differences role european court justice much london owe brussels remain major obstacles officials involve say good atmosphere week one eu official say may avert train crash might result another week stubborn deadlock would increase risk britain simply crash union legal limbo march 2019. british brexit secretary david davis say talk achieve considerable progress four days brussels repeat eagerness move discuss happen brexit two-year transition period may request britain would remain eu single market must never forget big picture britain want european union strong friend partner say echo may leave brussels optimistic future officials say transition issue raise week barnier say would take stock progress leaders 27 eu state brussels summit three weeks time week next negotiate round give indication likely recommend open trade talk sufficient progress deliberately leave undefined eu diplomats doubt barnier satisfy october many see december summit likely moment open trade negotiations however officials say could blur eu refusal discuss post-brexit issue side narrow differences gain confidence settle term barnier highlight two key areas disagreement legal protection right million eu citizens britain pre-brexit settlement britain share outstanding financial commitments make membership new figure eu auditors thursday show sum stake may grow talk continue simply due delay bloc spend already agree payments may say friday britain would ensure 27 pocket current eu budget period would honour commitments barnier express disappointment negotiators make clear mean end budget payments 2020 even though payments current 2014-20 budget go years beyond london give detail commitments would meet citizens right welcome davis confirmation treaty guarantee direct effect british law tighten link eu negotiate citizens count future british court union continue demand people also right pursue grievances eu court luxembourg red line british government keen show voters back brexit last year take back control welcome guarantee britain would safeguard right way consistent eu law barnier say fail agree european court justice must play indispensable role ensure consistency brexit talk warm may 's speech closure