Change the sentences from active to passive 1. The teacher explains the new rule. 2. The teacher is explaining the new rule. 3. The teacher has explained the new rule. 4. The teacher explained the new rule. 5. The teacher was explaining the new rule. 6. The teacher had explained the new rule. 7. The teacher is going to explain the new rule. 8. The teacher will explain the new rule. 9. The teacher can explain the new rule. 10. The teacher should explain the new rule. 11. The teacher ought to explain the new rule. 12. The teacher must explain the new rule. 13. The teacher has to explain the new rule. 14. The teacher may explain the new rule. 15. The teacher might explain the new rule.