"I think I can give more to the team," he told the Birmingham Mail.
"You always have to improve but at the same time I don't want to say 'I can do so much more' because you never know in football.
"I work every day to improve and I always want to give more.
"I want to carry on giving more to this club which has given me an opportunity.
"They gave me this chance to play in the Premier League and I will to give everything in return."