<p>When comparing, can you write something like..
Caitlin runs faster than Tyrell</p>
<p>or does it have to be
Caitlin runs faster than Tyrell does ?</p>
<p>thanks</p>
<p>Caitlin runs faster than Tyrell does </p>
<p>ur contrasting actions right (running)
unless you mean quick in the mind...</p>
<p>It is grammatically correct to leave off the verb.</p>
<p>Remembering that the verb is there, though, can be helpful in understanding that "He does better than I [do]" is correct over "He does better than me [do]."</p>