You could, of course, use:
<??me>
or:
<[! ]{2}me>

The ? is not, apparently, a valid character within [], so [?](2)me> won't work and, even if it did, that expression would only find strings in words of any length ending in 2me.

The ?{2}me> find strings words of any length from the insertion point until it encounters a word ending in me.

etc.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]