\begin{frame}[t] \frametitle{example title} \framesubtitle{example subtitle} example text \begin{itemize} \item test \item test \begin{itemize} \item test \item test \end{itemize} \item test \end{itemize} \end{frame} \begin{frame}[t] \frametitle{example only title} example text \begin{itemize} \item test \item test \begin{itemize} \item test \item test \end{itemize} \item test \end{itemize} \end{frame}