Bebe says he does not know if the £7million that Manchester United paid for him was fair or not.
The 22-year old Portuguese forward arrived at Old Trafford from VitoriaGuimaraes in 2010, just a couple of weeks after joining them on a free.
His time with United has been unsuccessful which has forced him out on loan to Besiktas in 2011/12 and Rio Ave this season but Bebe indicated it was not his fault the price for his services was paid.
"The two months I had with Guimaraes were perfect," he told Maisfutebol.
"I do not know if my value was fair or not, but I know that Mr Ferguson trusted the information that was passed on about me.
"I know that I am capable of making a difference with my drive and pace, and in English football this is fundamental and maybe Mr Ferguson looked at this."
