The 26-year-old actor, who was born in London, says that he relies on changing the way he speaks to feel like he is in character, reported Showbiz spy.
"I feel very naked with my British accent. I feel like I'm not really acting. And also, English things aren't very good," he said.
Pattinson is all set to release the final segment of Twilight series, "The Twilight Saga: Breaking Dawn", which will hit theatres on November 16.