How to change this line to CFrame

Help and Feedback Scripting Support
#1

this is my script

Character.HumanoidRootPart.StandPosition.Position = Vector3.new(0,0,-3)

i want to make it to CFrame and idk how to that

#2

Character.HumanoidRootPart.StandPosition.CFrame = CFrame.new(0,0,-3)