London - Many Europeans living in Britain are worried they're on borrowed time despite having families or businesses in the UK. Their status is one of the most sensitive issues in the upcoming Brexit negotiations as their rights were only guaranteed as long as Britain stayed in the European Union. Al Jazeera's Barnaby Phillips reports. Subscribe to our channel: http://aje.io/AJSubscribe Follow us on Twitter: / ajenglish Find us on Facebook: / aljazeera Check our website: http://www.aljazeera.com/