I am not native English speaker but for me ideal is: “I have x to be done, could you pick it up?”. If person says no or asks why I can elaborate or hear them o

I am not native English speaker but for me ideal is: “I have x to be done, could you pick it up?”. If person says no or asks why I can elaborate or hear them out why and maybe I will do it on my own or delegate to another person. That sentence seems clear on what needs to be done and that it needs to be done, there is no “could, maybe” on the “do it” part and still gives other person control over the situation. For reasonable request and from boss position I don’t see how would it backfire. For unreasonable request or unreasonable person on receiving end - I guess there is no good way anyway :)