I believe I've heard people say "beforehands", and up until now I've actually added an s to the word when using it - will I have to change that habit? I just googled it and found that "beforehand" is used enormously much more than "beforehands" So my question is: is it always incorrect to say fx.: "Had I known about miss X's situation it beforehands, I would never have done what I did." I don't know why I've come up with the idea of the -s, but it must have come from somewhere. Thank you.