Hi Sue,
I haven't read Squiddie's post so apologies if this repeats it.
There are no 'combination' restrictions with EE. First, just consider that you have three food groups: free foods, healthy extras and syns.
Free foods: Anything that is free on red OR green - ie. all lean meat, all carbs, all veg, all fruit, most grains, etc etc.
Healthy extras: only have one A and one B choice (but you can pick from the green and red healthy extra lists for a bigger selection!)
Syns: have between 5 and 15. If something has different syns for red and green, pick the lower value.
Eat whatever you like in whatever combination you like. As long as you only have 1 A and 1 B, and less than 15 syns, you should be fine! There is a recommendation to fill one third of each meal plate with superfree food, but I've never bothered and it hasn't affected my losses.
If you're still confused, have you had a look at the weekly EE menu planners in the magazines and on the website for ideas?
Hope that helps!