A Viking can break his word if he has given it to a foreigner or a Viking from an enemy's clan. b. In some of the English proverbs below unless can be used instead of if. Rewrite the proverbs that can be changed. 1. When you're in Rome, do as the Romans do. 2. If you can't beat them, join them. 3. If you want something done right, you have to do it yourself. 4. Don't talk the talk if you can't walk the walk. 5. If you don't have anything to say, don't say anything at all. 6. If a job is worth doing, it is worth doing well. 7. If you don't know where you're going, then the journey is neverending. 8. If you can't stand the heat, stay out of the kitchen.