Newcastle playmaker Cabaye: My form hasn't been good enough
The France international, who has not scored in 2012-13, joined up with Newcastle four weeks late having played for his country during Euro 2012.
"My pre-season wasn't very good," Cabaye told BBC Newcastle.
"I need to keep working, keep playing and to be fit, because if you're not fit in England, it's really hard."
He added: "I don't know if it's an excuse, but I just want to be focused on the future and do well for the club."