Определить видо-временные формы глаголов и указать их инфинитив. We shall be speaking about it at the meeting. The film is much spoken about. People come from all over the world to visit the British Museum. He stayed at a very rich hotel.

shall be speaking -Future Progressive Active; to speak - инфинитив

is spoken- Present Simple Passive; to speak-инфинитив

come- Present Simple Active

stayed -Past Simple Active; to stay -инфинитив