Complex sentence: In trying to make these distinctions, one must bare in mind that Paul uses the same Greek word (charismata) to describe them all, so one has to ask whether he meant them to be differentiated in this way.
Split into simpler sentences: In trying to make these distinctions, one must bear in mind that Paul uses the same Greek word (charismata) to describe them all. So one has to ask whether he meant them to be differentiated in this way.