On a day when the 51-year-old sent out his team under orders to make amends for their derby humiliation by Sunderland a fortnight ago, the Magpies slipped to their heaviest home defeat since 1925 as the Reds ran riot without the suspended Luis Suarez.
Pardew said: "Well I'm worried, of course. You can't come off a defeat like that and the manner it was without being worried.
"I'm not going to criticise my players, I'm not going to criticise the team in any shape or form on an individual basis.
"It was a collective effort and we fell down collectively."
Asked if he is confident he can drag the club out of a terrifying tail-spin,
Pardew said: "Yes, of course, and I think we have got enough in the dressing room to do that.
"We haven't become a bad staff or a bad set of players overnight. But we definitely need to roll our sleeves up and make sure we make a really good fist of these last three games."
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