Words That Must Not Be Spoken (in an ungrammatical way) In Our Class:

like

ya know

irregardless  (once this was not an English word, but — much to my dismay — it is now accepted. See https://en.oxforddictionaries.com/definition/irregardless . Still, please avoid it like the plague. Is it now falling from use? Who knows? Languages are dynamic living realities that change. But I reiterate my plea: Please avoid it like the plague. Neither the plague nor the use of this purportedly acceptable word is good for you.