To finish the final portion of the purl entrelac square, knit across 7 stitches and slip the last stitch again. Turn the work, purl 7 and purl 2 together.
Do not turn the work. Your first square is completed and you can repeat these exact same instructions (starting with step 4 of this tutorial) to shape the remaining squares you need across the row.
In the sample swatch you need one more square; a different triangle edge piece is worked after that an explained later in this tutorial.
If your piece is wider and composed of more base triangles than the one shown, just continue in this manner until you've reached the edge of your work.

