How to regain a row of slipped stitches? Last night I was doing knit stitch on a practice piece of knitting in a small patch, 26 stitches long. When I got to the end I'd realised I'd messed up and I had 27 stitches. The yarn I'm using is very old (my mother in law gave me it to practice with but she last used it to make my husbands baby clothes...!) and a little frayed but not too bad to use, but I couldn't see where I had gone wrong even with most of the stitches being rather clear. 

So in my infinite wisdom I un-did the last row thinking I could slip the needle back on and then go again, but this ended up with me being completely unable to get the needle back through the stitches. I tend to knit too tightly at the moment (I'm a beginner and only been doing this about 3 weeks! I tied off on the end and kept the knitting for reference but have since started a new practice patch).

If I slip a row off a needle like that, by accident or on purpose, how would I get it back on?
When you have a row of slipped stitches that are too tight to fit back onto the original needle, you can pick them up on a different needle, such as:


Use a much smaller knitting needle. Eg, if you knitted originally on US size 8 needles (5.0 mm), use a US size 4 (3.5 mm) or smaller needle to pick the stitches up. The smaller needle should fit easily through the tight stitches. 


If you don't have other sizes of needles, look around your home and see if you have something that could substitute. It just needs to be stiff and skinny. Like a bamboo skewer for cooking.

Use a 16" circular knitting needle. If the stitches are not too tight you can use the same needle size as the original; otherwise use a smaller needle size. Circular knitting needles have a short portion that's the regular thickness of a knitting needle, then a portion of narrow cable. Once the stitches slide over the regular needle onto the cable, you get a little bit of slack because the cable is so much narrower than the needle. (The reason to use a 16" circular needle is that 16" circulars have a shorter portion of regular needle thickness than longer circulars.)
If you don't own a smaller size of needle, use an embroidery needle and scrap yarn. Tie something on the end of the scrap yarn to stop stitches from sliding off. (Lots of things can work for this: a large bead, a pencil, a wristwatch...)
Pass the embroidery needle through each stitch just as if it was a knitting needle. Once all the stitches are safely on the scrap yarn, you can safely transfer them to the original knitting needle. Or if they are extremely tight, transfer them to a knitting needle a size smaller than the original. 


Now that the stitches are all on a knitting needle, them with the original size of needle.

PS: On your next project, work on not knitting so tightly. It takes some practice but it will pay off in the end.