\begin{array}{ll}
\texttt{textrm} & \text{ABCabc} \\
\texttt{mathrm} & \mathrm{ABCabc} \\
\texttt{mathup} & \mathrm{ABCabc} \\
\texttt{text} & \text{ABCabc} \\
\texttt{mbox} & \text{ABCabc} \\
\texttt{mathbf} & \mathbf{ABCabc} \\
\texttt{mathbfup} & \mathbf{ABCabc} \\
\texttt{textbf} & \textbf{ABCabc} \\
\texttt{mathit} & \mathit{ABCabc} \\
\texttt{textit} & \textit{ABCabc} \\
\texttt{mathtt} & \mathtt{ABCabc} \\
\texttt{texttt} & \texttt{ABCabc} \\
\texttt{mathsf} & \mathsf{ABCabc} \\
\texttt{mathsfup} & \mathsf{ABCabc} \\
\texttt{mathbb} & \mathbb{ABCabc} \\
\texttt{mathcal} & \mathcal{ABCabc} \\
\texttt{mathscr} & \mathcal{ABCabc} \\
\texttt{mathfrak} & \mathfrak{ABCabc} \\
\texttt{mathbfit} & \mathbf{ABCabc} \\
\texttt{mathbfsfup} & \mathbf{ABCabc} \\
\texttt{mathbfsfit} & \mathbf{ABCabc} \\
\texttt{mathbfscr} & \mathcal{ABCabc} \\
\texttt{mathbffrak} & \mathfrak{ABCabc} \\
\texttt{mathbfcal} & \mathcal{ABCabc} \\
\texttt{mathsfit} & \mathsf{ABCabc} \\
\end{array}
