American Standard Version
Verily I say unto you, This generation shall not pass away, till all things be accomplished.

Amplified® Bible
Truly I tell you, this generation (those living at that definite period of time) will not perish {and} pass away until all has taken place.

Contemporary English Version
You can be sure that some of the people of this generation will still be alive when all of this takes place.

Darby English Version
Verily I say unto you, that this generation shall in no wise pass away until all come to pass.

Good News Bible
"Remember that all these things will take place before the people now living have all died.

International Standard Version
"Truly I tell you, this generation will not disappear until all these things take place.

King James Version
Verily I say unto you, This generation shall not pass away, till all be fulfilled.

New American Standard Bible
"Truly I say to you, this generation will not pass away until all things take place.

New International Version
"I tell you the truth, this generation will certainly not pass away until all these things have happened.

New King James Version
Assuredly, I say to you, this generation will by no means pass away till all things take place.

N.A.S.B. in E-Prime
"Truly I say to you, this generation will not pass away until all things take place.

Young's Literal Translation
verily I say to you -- This generation may not pass away till all may have come to pass;

New English Translation
I tell you the truth,¹ this generation² will not pass away until all these things take place.