How are CNA shifts usually divided?

BTW, I think I understand it now... the way they divide it really is a little bit confusing. It's Monday and Tuesday on, Wednesday and Thursday off, Friday, Saturday, and Sunday on one week. Then, the following week, it's Monday and Tuesday off, Wednesday and Thursday on, and Friday, Saturday, and Sunday off. So the entire schedule averages out to 42 hours a week. I think the best way to understand it would be as two days on, two days off, three days on, two days off, and two days on, three days off. Then the whole cycle starts again. If I have to start at 6 a.m. (which I do with this shift) I'd really think that I'd much rather do it this way than as a regular 5-day-a-week cycle. T(hank God that the end of daylight savings time is coming soon! I never, EVER get used to it all year long. )