Crochet Ridged Chevron Pattern

The quantity of sts is multiple 12.

1st row: skip 3ch (count as 1dc), 1dc into next ch, *1dc into each of next 3ch, [over next 2ch work dc2tog] twice, 1dc into each of next 3ch, [2dc into next ch] twice; rep from * ending last rep with 2dc once only into last ch, turn;

2nd row: 3ch (count as 1dc), 1dc into first st, always inserting hook into back loop only of each st *1dc into each of next 3 sts, [over next 2 sts work dc2tog] twice, 1dc into each of next 3 sts, [2dc into next st] twice; rep from * ending last rep with 2dc once only into top of tch, turn.

Repeat the 2nd row.