The document discusses the future continuous tense, which is used to refer to actions that will be in progress or ongoing at a specific time in the future, such as "I will be having dinner by the time the TV news is on." It can also refer to actions that have already been planned to happen, like "This time next month, we'll be lying on the beach." The future continuous is used to politely ask about what someone has already decided to do, such as "Where will you be spending the night next Saturday?"