There are many rules in football, but here are some of the basic ones:

1. The objective of the game is to score more goals than the opposing team.
2. The ball must be kicked by the foot and not by the hand or arm (except for the goalkeeper within their own penalty area).
3. If a player commits a foul, the opposing team is awarded a free kick or penalty kick depending on the severity and location of the foul.
4. Offside rule: A player is offside if they are closer to the opponent's goal than both the ball and the second-to-last defender at the moment the ball is played forward to them.
5. Yellow card is given as a warning, and a red card leads to a player being sent off and cannot be replaced.
6. Throw-ins are given to the team opposite to the one who last touched the ball before it went out of bounds.

These are just a few examples of the rules in football, and there are many other specific rules and regulations that apply during gameplay.