What are the four seasons of NFL Football?

There are four seasons each year in the NFL, each with a sort of win/loss record.

1. Regular Season - Where records and careers are made
2. Postseason - The goal of all those wins in the regular season
3. Preseason - Getting ready for football, showing progress is the key
4. Off-season - Free agency, the draft, trades all the things that make or break teams in the other three seasons