I was looking at my "Prontuário" and it has the following rule:
"São oportunos de citar"
It says it is the same for:
So, I went to the LT's text analyses and they match the following postags.
I need your opinion if I can create a rule with those postags (for all possible words) + plural forms and if should only be used with "citar" or if I can look for any verb in the "citar".