Increase with ribbing

I am doing a sweater from Purl soho boTanical pull over. Doing ribbing 2x2 now time to do increase. First and last stitch. Next row should I knit or Purl increases. Won’t this make my ribbing wrong ? Whole sweater is ribbing

Are there more increase rounds to follow? Usually you want to maintain the pattern as either knit or purl throughout or until you have enough increases to work into the rib pattern.
Don’t shift the rib pattern at all costs.

Here’s some advice from Purl Soho on the increases in the sleeve. It may well be applied to the body of the sweater, too.

Thank you sooo much for the help. It’s cold here, whaat a good day to knit!
Thanks again