1.a train leaves at 8 o'clock every morning
=>there is.a train which leaves at 8 o'clock every morning
2. some body repaired her car yesterday.
=> she have somebody repaired her car yesterday
3. you must see the manager tomorrow morning.
=>you've to see the manager tomorrow morning
4. they will catch all the prisoners again by tonight
=> all the prisoners will be catched again by them by tonight
5. I 've wanrned you not go to near that dog.
=>I 've warned you about going to near that dog