cables without a cable needle:
left twist cable
knitting blog

completed work

 

This cable is traditionally worked as follows:

Slip 3 sts on to a cable needle and leave at front of work, knit next 3
sts, then knit 3 sts from cable needle.
 

To work without a cable needle:
Insert the tip of the right needle through the second three stitches of the cable behind the work:
Slip the left needle out of the six cable stitches (the second three stitches remain on the right needle):
Slip the left needle back through the first three stitches in front of the work:

With the first three stitches on the left needle, pull the needle back to the left to twist the cable:

 

Insert the tip of the left needle through the first stitch on the right needle and take it off the right needle:

Repeat for the second stitch:
And for the third stitch:

All your cable stitches, now twisted, are back on the left needle:
Knit the six cable stitches:
Knit the six cable stitches:
Knit the six cable stitches:

Your cable is complete!

Now we can move on to the six stitch right twist cable.