I think I’m starting to get the idea a bit more. As shown in the below photo is sowing the three raglan seams. Am I correct in thinking these are the three red sections? So it leaves the back left open as the pattern says?
If I’m correct with the above I also have another question! At the moment I have each section on a stitch holder and as you can see in the photo a long bit of yarn at the end. Should I tie off / knot off these ends before I join the seams to make the top section neater (keeping the stitches on the holders though for doing the neck band?
Thanks for your patience, time and help with explaining this,