Step-by-Step Crochet Instructions for Multiple Stitches

Introduction
The quantity of stitches is a multiple of 12.
Row Instructions
1st Row
Skip 3 chains (count as 1 double crochet), 1 double crochet into the next chain, *1 double crochet into each of the next 3 chains, [over the next 2 chains work double crochet two together] twice, 1 double crochet into each of the next 3 chains, [2 double crochets into the next chain] twice; repeat from * ending the last repeat with 2 double crochets once only into the last chain, then turn;
2nd Row
3 chains (count as 1 double crochet), 1 double crochet into the first stitch, always inserting the hook into the back loop only of each stitch. *1 double crochet into each of the next 3 stitches, [over the next 2 stitches work double crochet two together] twice, 1 double crochet into each of the next 3 stitches, [2 double crochets into the next stitch] twice; repeat from * ending the last repeat with 2 double crochets once only into the top of the turning chain, then turn.
Continuation
Repeat the 2nd row.