crochet stitch No 28 - video tutorial & pattern

Pattern : for this project we start with 20 chain       1 row - *3chain -3dc in the  stitch -skip 2chain - sc* repeat until for all the row.     2 row - 5 chain ,*sc front post in the second dc - 3ch - 4dc (double crochet)in the last dc * we repeat the same procedure untilof the series.
3 row and the rest of the series - repeat the second row -  5 chain ,*sc front post in the second dc - 3ch - 4dc (double crochet)in the last dc * we repeat the same procedure until of the series