Removing word or character from string followed by space or before space in c#

Question

I have a string

string name = \"AL QADEER UR AL REHMAN AL KHALIL UN\";

How would I remove all characters AL, UR,

Answer 1

Pure LINQ answer with the help of EXCEPT

string name = "AL QADEER UR AL REHMAN AL KHALIL UN";
var list = new string[] { "AL", "UR", "UN" };

name = name
   .Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries)
   .Except(list)
   .Aggregate((prev, next) => $"{prev} {next}");

OUTPUT: QADEER REHMAN KHALIL