The Spain international has been the standout performer for United over the past two seasons, leading to speculation of a big-money move to Real Madrid.
But De Gea has suggested he is not ready to return to his homeland as the 24-year-old believes that England’s top flight is greatly aiding his development.
“Truth be told, English football has changed me a great deal,” he told FIFA. “I’ve developed a lot physically, greatly improved my concentration and generally improved all aspects of my game.
“I was very young when I came here, but four years on, things are very good overall. This league really suits me, as you learn a lot here.”
De Gea also revealed that training alongside compatriot Victor Valdes at Old Trafford every day is also a major benefit to him.
“Victor Valdes and I work very well together – I’m very happy to be with him,” De Gea said of the former Barcelona keeper, who joined the Red Devils on a free transfer in January.
“I’m learning so much from him, not just in goalkeeping terms given his immense experience, but also as a person.
“He’s a very straightforward guy with a lot of character. Moreover, he’s always ready to lend a hand, trying to help out with his advice, especially during games.”