"Fair is foul and foul is fair"
They don't mind about winning fairly, they equivocate Macbeth
Witches can't tell the difference between good and evil
"I fear thou played most foully for it" - played link to strategy MB as soldier
"So foul and fair a day I have not seen"
"Fair hostess" - was foul
Speak in unison in trochee unlike most other characters, sets them apart , subverts christianity