Berean Study Bible
And now I have told you before it happens, so that when it does happen, you will believe.

King James Bible
And now I have told you before it come to pass, that, when it is come to pass, ye might believe.

American Standard Version
And now I have told you before it come to pass, that, when it is come to pass, ye may believe.

Darby Bible Translation
And now I have told you before it comes to pass, that when it shall have come to pass ye may believe.

Douay-Rheims Bible
And now I have told you before it comes to pass: that when it shall come to pass, you may believe.

English Revised Version
And now I have told you before it come to pass, that, when it is come to pass, ye may believe.

Young's Literal Translation
And now I have said it to you before it come to pass, that when it may come to pass, ye may believe;