Knitting entrelac requires only the knit and purl stitches, an ability to "k2tog" and "p2tog" (knit or purl two stitches together) and to pick up stitches.
Entrelac knitting uses just knit and purl stitches, along with the techniques of "k2tog" and "p2tog" (knitting or purling two stitches together) and the ability to pick up stitches.