When "as well as" is used as a conjunction (ie in place of "and"), there is no need to use commas before or after the phrase Moreover, it should always be used with a singular verb How do you use as well as?Well, it depends The word "and", when spoken about as a word, is a noun Therefore the context decides whether it needs a comma after itThe rule goes something like this When "too" is used in the sense of "also," use a comma before and after "too" in the middle of a sentence and a comma before "too" at the end of a sentence I am editing a work of fiction in which the author has rigidly applied the rule I have just as rigidly deleted the commas
Comma Before As Well As The Definitive Guide