1. I often go to the library on weekdays. 2. She rarely speaks English at home. 3. He sometimes tells us to learn the parents. 4. We are never late. 5. You never try to understand them. 6. I always forget this word. 7. They usually prepare lessons together. 8. My watch is good and never lags behind. 9. You can always take this book in the library. 10. May he sometimes come here. 11. I'm always glad to see you.
1) will be flying 2)harder 3)is flying 4)will take 5)swimming 6)always 7)to complete 8)will have been working 9)are going to fall 10)will become 11)had fled 12)play 13)is thinking 14)opens 15)to eat