From para and eimi (including its various forms); to be near, i.e. At hand; neuter present participle (singular) time being, or (plural) property -- come, X have, be here, + lack, (be here) present.
KJV: Then Peter went down to the men which were sent unto him from Cornelius; and said, Behold, I am he whom ye seek: what is the cause wherefore ye are come?
NASB: Peter went down to the men and said, "Behold, I am the one you are looking for; what is the reason for which you have come?"