One of the help messages when posting a question cannot be translated. It is the string below for help on using HTML.
<pre>
You <em>cannot</em> use Markdown here
</pre>
Screenshot
(Spanish version of Stack Overflow)
Similar strings
The strings below are similar but different from the ones above. These are translatable.
<pre>
You can <em>not</em> use Markdown in here.
</pre>
You can $em$not$endem$ use Markdown in here.
