Raglan shaping

How-to Questions
1

I have followed the instructions below with no trouble
1st row: k1, s1, k1, psso, rib to last 3 sts, k2tog, k1.
2nd row: p2, rib to last 2 sts, p2
I’m a bit confused with the next instruction:
Work 18 rows dec 1 st qt each end as before in next and every foll alt row
So, my first row of these 18 rows will be as 1st row above but what after that?

Thanks in advance.

2

Welcome!
Keep repeating the 1st and 2nd rows for 18 rows.
What is the name of your pattern?

3

Thank you salmonmac.
The pattern is a sirdar round neck pattern.

4

Thanks you for sharing.