Watch a report by ITV Anglia's Natalie Gray
Even though all four of her children were born in Norfolk, they chatter to their mother Susana Forte Vaz in Portuguese.
But they talk to each other in English. It's what works for this family who've made Thetford in Norfolk their home.
Mum Susana owns a cafe , Mister Prego, in the town. She moved to Thetford from the Portuguese capital Lisbon in search of work 13 years ago and stayed.
And then along came Brexit which has left them asking ....
Susana's partner is equally worried. He edits a Portuguese newspaper in Thetford.
According to the National Office for Statistics there are about 3.3M EU citizens in the UK but it is just an estimate. The figure for Thetford is approximately 6,000.
The town is home to a large population of Portuguese, Polish, Lithuanians and Latvians.
Susana and Joao are hoping they have been here long enough to acquire permanent residency and hence the right to work.