NET
6 Then he appeared to more than 500 of the brothers and sisters at one time, most of whom are still alive, though some have fallen asleep.
Darby
6 Then he appeared to above five hundred brethren at once, of whom the most remain until now, but some also have fallen asleep.
KJV
6 After that, he was seen of above five hundred brethren at once; of whom the greater part remain unto this present, but some are fallen asleep.