The Spain international has been linked with a switch to the English champions in the past and when the question was put to him recently, the 24-year-old said that although he was currently happy in Catalunya, nothing could be guaranteed that he would still be there in the future.
"I do not know if City has spoken to the club or my representative,” Busquets told reporters.
“At the moment, I am the same as you. I am living in the present and I’m very happy.
“I would hope to continue at [Barcelona] for many years, but I like to live in the present, no one knows what will happen in the future.”
The defensive midfielder also conceded that he is missing the presence of former coach Pep Guardiola around Camp Nou.
He added: “For all that Guardiola has given me, I will miss him always.”
Barcelona are currently top of La Liga after taking 31 points from 11 games.