How to make Double Crochet Three Together

Take the thread with the needle, making one loop.

Insert the needle in a chain base and hook the thread forming one stitch. 1 loop, closed 2 stitches on the needle, thus leaving 2 stitches on the needle.

Then take the needle thread, making one loop. Insert the needle in one chain base and hook the thread forming one stitch. With another loop, closed 2 stitches on the needle, now being 3 stitches on the needle.

Finally, take the thread with the needle, making one loop. Insert the needle in one chain base and hook the thread forming one stitch.

With 1 loop, close two chains on the needle, now being 4 stitches on the needle. With one last loop, closing the 4 stitches left in the needle.