To paint a duck yellow in Engpsh, you can say "paint the duck yellow." Here are a few different ways you could say it:

"Can you please paint the duck yellow?"
"I'd pke to paint the duck yellow. Do you have any yellow paint?"
"The duck needs to be painted yellow. Can you help me with that?"

It's also possible to use more descriptive language, such as "color the duck yellow" or "give the duck a yellow coat."