Yes.
to say b:
say "[bold text]";
to say i:
say "[italic text]";
to say r:
say "[regular text]";
to say fl: [I always forget the precise wording here]
say "[fixed letter spacing]";
to say vl: [here too]
say "[variable letter spacing]";
to say ob:
say "[bracket]";
to say cb:
say "[close bracket]";
Also, one thing many people miss is that [apostrophe] can be shortened to ['].