If he does, he's doing better than I. I can't find any way to make a real word. I suppose you could put a W after that D. But what then? DWAFE? DWAGE? DWAKE? DWAPE?
Here's my list of the guesses. Am I missing a letter? Did you forget to fill in a letter we already guessed? Am I just overlooking a word?
Yep: ABDEHNSU
Nope: CILORT
Not yet guessed: FGJKMPQVWXYZ