and, forty sockets of silver, made he, under the twenty boards, two sockets, under the first board, for its two tenons, and, two sockets, under the next board for its two tenons.

and their forty sockets of silver, two sockets, under the first board, and, two sockets, under the next board.

and you are to make forty silver bases to go under the twenty frames -- two bases under the first frame for its two projections, and likewise two bases under the next frame for its two projections;

and their forty silver bases, two bases under the first frame, and two bases under the next frame.