# Combine alert pause and invisible in beamer

I would like to combine alert, pause and invisible in beamer.

\documentclass{beamer}
\setbeamercovered{transparent}
\begin{document}
\begin{frame}
\item item A
\item item B
\item item C
\item item D
\end{itemize}
\end{frame}
\end{document}


The above code works but it shows all items. I would like to start with all items hidden, then shown when I reach the item and then their transparency reduced thereafter.

I have tried to use something like [<+(1) |alert@+>| invisible@-+>] but it won't work

Try this:

\documentclass{beamer}
\setbeamercovered{transparent}
\begin{document}
\begin{frame}