KJV - For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren.
ASV - For whom he foreknew, he also foreordained `to be' conformed to the image of his Son, that he might be the firstborn among many brethren:
BBE - Because those of whom he had knowledge before they came into existence, were marked out by him to be made like his Son, so that he might be the first among a band of brothers:
WEB - For whom he foreknew, he also predestined to be conformed to the image of his Son, that he might be the firstborn among many brothers.{The word for "brothers" here and where context allows may also be correctly translated "brothers and sisters" or "siblings."}
YLT - because whom He did foreknow, He also did fore-appoint, conformed to the image of His Son, that he might be first-born among many brethren;