The sentence 'John will be leaving for England tomorrow' is in :

To determine the tense of the sentence 'John will be leaving for England tomorrow', follow these steps: Step 1: Identify the main verb phrase. Here, it is 'will be leaving'. Step 2: Recognize that 'will' is a modal auxiliary used to express future actions. Step 3: Note that 'be leaving' is the present participle form of 'leave', used with 'will' to form the future continuous tense. Step 4: The future continuous tense is used to describe actions that will be in progress at a specific time in the future. Therefore, the sentence is in the Future Continuous Tense.