Most modern Bible translation are missing a number of verses and words due to the fact they are translating from different Greek manuscripts than the King James Bible. Here is a summary of some of the missing verses:
Matthew 17:21
Matthew 18:11
Matthew 23:14
Mark 7:16
Mark 9:44
Mark 9:46
Mark 11:26
Mark 15:28
Luke 17:36
Luke 23:17
John 5:4
Acts 8:37
Acts 15:34
Acts 24:7
Acts 28:29
Romans 16:24