Thread:User talk:CodeCat/graag/reply

Some dialects pronounce /ɣ/ and /x/ the same (both voiceless), while in others, they're different. See Dutch phonology.

With "graag gedaan" there's also another change. "graag" ends with /x/ and "gedaan" begins with /ɣ/. When these two sounds come together, assimilation occurs which leaves only /x/.