Nani – who is currently away on international duty with Portugal ahead of their World Cup play-off encounter with Bosnia-Herzegovina – also told how the Scot has ‘shattered his confidence’ after finding himself out in the cold for United’s high-profile matches.
And he revealed how Ferguson’s displays of anger on match-days are a common occurrence within the four walls of the dressing room.
“Ferguson is a very complicated man,” Nani told Portuguese newspaper I.
“He’s tough. If things are all right, then they are all right. But when he thinks something is wrong, everything is screwed. He can go from complimenting you to just plain trashing you in a matter of minutes.
“Has it happened to me? Hell, yes! He’ll say ‘Nani, how could you miss this or this?’
And it appears not even loyal servants Gary Neville and Ryan Giggs are exempt from the wrath of the United manager.
“He shouts at players in front of everyone. No one escapes, everybody is the same," he said.
"Giggs and Neville suffer most, because they have more experience. It is ‘f**k’ here and ‘f**k’ there.”
The Portuguese winger joined the Red Devils in the summer of 2007 following his £17 million switch from Sporting Lisbon.
But for the occasional flash of brilliance or trickery, United’s No.17 has largely failed to live up to the hype surrounding his arrival.
“People expect more from me and it’s not easy,” he added.
“I can have a spectacular game but nobody guarantees me I will be starting the next match. It shatters your confidence.”
“I know it is still early and that there are lots of games to play this season but I never got to play the big matches like Liverpool, Manchester City, Tottenham.
"And, if I don’t play those matches, I get sadder by the day."
