I am using natbib with superscript numbered citations as follows:
\usepackage[super,comma,sort&compress]{natbib}
It works great when I have the case This is a reference~\cite{author1999}. My reference appears as a superscript.
However, I occasionally want write something like: As shown by \citet{author1999} where I want the citation written out and not as a superscript. natbib in super mode inserts a superscript when using \citet.
Is there a way to have natbib use \citet in regular mode despite being in super mode? Can one change the mode temporarily to not have super and then switch it back on again?

\citenuminstead of\cite(or\citetor others). This will display the pure reference number3. Without superscript or brackets or anything. I believe brackets can just be added manually, which should be doable for occasional uses. – Steeven May 22 '17 at 12:54