Boris Johnson declared that Britain can have a ‘super Canada-plus’ free trade agreement with the EU and by the end of 2020 there will be no need for political alignment. However, this ambition can be thwarted by some unknown factors such as time, negotiation challenges and unfavourable election result.
Trade talks cannot legally begin until the UK leaves the EU, and the scheduled transition period expires at the end of December 2020. This leaves just 11 months to negotiate a deal that Canada took seven years to complete. On an average, it takes 48 months to negotiate trade deals. The EU follows a strict 33-stage process in trade deals starting with consultations, likely to take months, over the impact of a likely deal.
source: the guardian