United last won this fixture in December 2007 but Sir Alex is mindful that his side enjoyed a decent record before that.
"Results at Liverpool in the last two or three years have not been great for us," the Reds boss said. "We haven’t done as well as we used to do.
"But that changes. There was period when Liverpool beat us three or four times in a row six or seven years ago, but then we had a spell winning four or five in a row.
"But that is how it see-saws with such a great rivalry between two great clubs. It will always be that way. Both clubs will always have their moments. We want to get back to the time when we were beating them regularly.
While Sir Alex knows Kenny Dalglish’s side will be buoyed by reaching the Carling Cup final at Man
Last 10 (Premier League unless stated):
15/10/11: Liverpool 1-1 United
06/03/11: Liverpool 3-1 United
25/10/09: Liverpool 2-0 United
13/09/08: Liverpool 2-1 United
16/12/07: Liverpool 0-1 United
03/03/07: Liverpool 0-1 United
18/02/06: Liverpool 1-0 United (FA Cup)
18/09/05: Liverpool 0-0 United
15/01/05: Liverpool 0-1 United
09/11/03: Liverpool 1-2 United
United's FA Cup record at Anfield:
P4, W1, D1, L2