R1E1C3O1L1O1U1R1
10 points
RECOLOUR is validvalid
to colour again [v RECOLOURED, RECOLOURING, RECOLOURS]
to colour again, also RECOLOR [v -ED, -ING, -S]
to colour again [v RECOLOURED, RECOLOURING, RECOLOURS]
to colour again, also RECOLOR [v -ED, -ING, -S]