How to Use "backdate" with Example Sentences

1. He 'll backdate your cost-of-living adjustments .

2. The pay increase be backdate to january 1st .

3. Experiences and messages on backdate bibliography database construction at my library .

4. Come 3 years the backdate of macroscopical economy adjusting control and experience think over .

5. Something couldn 't backdate to the former state , just like a film ticket which had been checked .