Tell us when is this to take place and what will be the sign when these things, all [of them], are about to be accomplished?
Tell us, when shall these things be? and what shall be the sign when all these things shall be fulfilled?
Tell us, when shall these things be? and what shall be the sign when these things are all about to be accomplished?
“Tell us, when will these things happen? What sign will show that all these things are about to come to an end?”
"Tell us, when will these things be, and what will be the sign when all these things will begin to be fulfilled?"