No, and I don wan to.

These are the only words Rohan seems to know right now.

"Rohan, please take off your shoes"
"No, I don wan to"

"Rohan, please come inside it's cold"
"No, I don wan to"

"Rohan, please stop growling at Aragorn, he says you are scaring him"
"Raaaaaaaaaaaawwwwwwwwwhhhhhhhhhhhhhhrrrrrrrrrrr"

Ok so maybe he knows one other word………….