which to go for<br/><br/><span style="color:#000000;">He set a precedent for teachers who will become professors in the future.</span><br/><br/><span style="color:#000000;">He set a precedent for teachers who become professors in the future.</span><br/><br/><span style="color:#000000;">That would <i>set a precedent for those who</i> would do this in the future.</span><br/><br/><span style="color:#000000;">That would <i>set a precedent for those who</i> did this in the future.</span>