she speaks in iambic pentameter - a sophisticated metric that is representative of the higher classes of Macbeth
* lowly constructs like the porter using prose to symbolise a lack of power
* immediately shows her power in society as she is given the more developed and intelligent form to show her power in society as the wife of a thane.
Alternatively, at times her language devolves into almost chanting, alluding to the spell casting of the witches, therefore suggesting she has a form of mystical power
* has the ability to unnerve the audience - making her powerful
* witch context