1. Offside- That’s when a player crosses the line of scrimmage before the ball is snapped
2. Illegal rush- The rusher is not lined up at least 7 yards off the line of scrimmage
3. Illegal flag pull- A player pulls the flag of an opponent before they have full possession of the ball
4. Roughing the passer- A player makes contact with the passer after they’re thrown a forward pass
5. Taunting- A type of unsportsmanlike conduct where the player purposely creates ill will between teams!
Hope this helps! (Also is it fine if this can be a brain list answer it’s fine if not but I will be very grateful if you can!)