"내일은 걸을 거예요."
Translation:I will walk tomorrow.
lol May I ask where you are originally from? Your knowledge of Chinese letters seem to put you on a super fast-track for sure! Good for you!
As per the lesson notes: "For ㄷ special case verbs, those where the final ㄷ becomes a ㄹ, add 을 to the end of the stem. 듣다=>들을"
Tomorrow, tomorrow, tomorrow. Must be a hell of a procrastinator who (finally) wrote this.