Plant groups very slightly depending on the type of crop rotation plan you are using.  These are the plant groups for a four step crop rotation plan. 

If you are using a three step plan then simply combine the leafy and legume groups into a single vegetable group. 

Plant each of the four vegetable groups in four separate beds and rotate them in order of what comes next as shown in the four step crop rotation plan diagram.  By following this plan you will ensure that each vegetable group will only be planted in each bed only once every four years.