Hi I am new to knitting and I am knitting a cardigan for my friends baby thats due in February. I'm knitting the back and starting to shape the armholes. The basic 4 row pattern is1 knit row, 2 purl row, 3 knit 1 purl 1, 4 purl row and repeat all until a certain length. Then keeping pattern correct cast off 1 stitch at beginning of next 2 rows. Next row knit 2, slip 1, knit 1, pass slipped stitch over, pattern to last 4 stitches, knit 2 together, knit 2. All of which I've done. This is what I don't understand...
Next row purl. Keeping 4 row pattern correct, repeat the last 2 rows until 21 stitches remain finishing on a wrong side. Cast off.
Do I purl a complete row as normal or do i purl 2, slip 1, purl 1, pass slipped stitch over, pattern to last 4 stitches then purl 2 together, purl 2?
Then if keeping to the pattern it would be a row of knit 1, purl 1...do I incorporate the above again? As in knit 1, purl 1, slip 1, pass slipped stitch over, pattern to last 4 stitches then what do, do I knit 2 together or purl 2 together? I'm quite confused! Please help.