Нужно задать вопросы к предложению I will have to take the dog for a walk. Специальный, общий, разделительный и т.д.
Why should I have to take the dog for a walk? Are you ought to take the dog for a walk? You should take a dog for a walk, should't | shan'tyou? Are you have to take your dog for a walk, or you will walk with it during lunch?