Mastering Future Tenses: Future Continuous and Be + Infinitive

In this episode of 6-Minute Grammar, the hosts provide a comprehensive guide to two essential English grammar structures used to discuss the future: the Future Continuous and the 'Be + Infinitive' construction. Understanding these forms allows for more nuanced communication regarding plans, predictions, and official instructions.

The Future Continuous: Plans, Predictions, and Assumptions

The future continuous is formed using the structure: subject + will/won't + be + the -ing form of the main verb. As noted in the podcast, this tense is highly versatile, serving several distinct purposes:

• Scheduled Future Events: It describes actions happening at a specific point in time, often paired with time phrases like "this time next week" or "next year." For instance, "This time next week, I'll be sitting on a beach in Mallorca."
• Duration of Actions: It can articulate how long an activity will persist, such as in the example: "I'll be staying in Palma for one week."
• Concurrent Events: When describing an action happening alongside another, the hosts note that we "usually use the present continuous in the time phrase after 'while'," as in: "While you're working at the BBC, I'll be sipping my cocktails."
• Predictions and Assumptions: Beyond mere scheduling, the future continuous is used for predictions based on evidence (e.g., "Those clouds look very dark. It'll be raining soon") or to express what we imagine to be true at the moment, such as assuming someone is sleeping because "it's two o'clock in the morning in Dubai."
• Polite Enquiries: The structure is also effectively used to make polite requests, such as asking, "Will you be staying for dinner?"

The 'Be + Infinitive' Structure: Instructions and Formalities

The podcast also explores the subject + be + infinitive (with 'to') structure, which serves a more prescriptive and formal function in the English language.

• Instruction and Necessity: This form is used to dictate what someone "must or mustn't do." For example, "Students are to enter the hall from the back," or the negative form, "You are not to go to bed late tonight."
• Official Arrangements and Media Reporting: This structure is frequently encountered in formal contexts, such as describing diplomatic visits ("The Duke and Duchess of Cambridge are to visit Singapore next month") or formal media reports regarding legal proceedings, such as: "A man is to appear in court later today charged with murder."

Conclusion and Key Takeaways

The episode concludes by emphasizing the importance of distinguishing between these forms based on the speaker's intent. While the future continuous is dynamic—focusing on the flow of actions, predictions, and personal plans—the 'be + infinitive' structure is rigid, focusing on rules, official protocols, and certainty. Mastery of these forms, as demonstrated in the program's quiz, requires recognizing when to use the continuous -ing form for ongoing states versus the infinitive for mandatory instructions.