The quantity of sts is multipled 3 sts wide and 4 rows in height.
1st row: knit;
2nd row: purl;
3rd row: 1 yarn over, knit2tog with left decline (through back loop), 1 knit st;
This is pattern repeat in width.
4th row: 1 yarn over, knit2tig with left decline, 1 knit st.