Having trouble moss stitch pattern

knitting moss has worked out but now the pattern says

M.-st. 2, work tog 3, M.-st. 3

The problem is what does the numbers after M.-st. mean? and work tog 3?

They mean to work the moss st over 2 sts or 3 sts. Work 3 tog would mean to knit or purl 3tog, whichever would keep the pattern intact whereever the decs are in the row.