​And

Used to:

introduce an ADDITIONAL piece of information or comment.

The star player was fast and able to score multiple times.

​And turn them into this:

The star player was fast.

He was able to score multiple times.​

Take these:

USe "And":

Some text here about the topic of discussion

​Or

Used to:

connect alternatives​.

The coach said we could practice dribbling or shooting the ball.

​And turn them into this:

The coach said we could practice dribbling the ball.

She said we could practice shooting the ball.​

Take these:

USe "or":

​But

Used to:

introduce contrasting ideas.

The star player kicked the ball towards the goal, but did not score.

​And turn them into this:

The star player kicked the ball towards the goal.

He did not score.​

Take these:

USe "but":

​SO

Used to:

introduce a reason.

Our best player had an injury so she couldn't play in the final game.

​And turn them into this:

Our best player had an injury.

She couldn't play in the final game.​

Take these:

USe "so":