How to draw Bed Ford Cord Design and its four types [বাংলায়]

There are basically four types of bed ford cord design. this is a sequential video and in the sequence of fabric structure and design tutorial I am explaining several kinds of textile related design and their application. I am trying to explain in my native language how to draw such kind of designs to implement in a fabric so that we can have a better look in the fabric. today it is about the basic four types of Bed Ford Cord design and their drawing. I hope it will be useful for the textile learners