Fred will be at work by nine o`clock provided he catches the 8 o`clock train.
If you like rock music, you will love this band.
Tom doesn`t want to go, but he will call me if he changes his mind.
He will be home by midnight unless he misses the last bus.
If he had got up on time, he wouldn`t have been late for work.
If she misses her flight, she won`t be able to leave tomorrow.
He would have set off earlier provided he had known there would be so much traffic.
Succes!