[Haskell-beginners] loop problem

Hello, I need to make a sort of loop so a text is displayed several times. So this idea : repeat 3 true will be True True True. So in another language I would have programmed. for teller = 1 to a print text But I need to use list comprehession. So I thougt I use this : replicate :: Int -> a -> [a] replicate a xs = [xs | x' <= a <-xs] But now I get this message : oefening.hs:2:24: Parse error in pattern: x' <= a Where did I go wrong here ? Roelof