What are some other time expressions commonly used to indicate the future perfect continuous tense?

Some other time expressions commonly used to indicate the future perfect continuous tense are:

1. By the time: This expression is used to indicate that an action will be ongoing until a specific point in the future. For example, "By the time I finish my studies, I will have been studying for six years."

2. For: This expression is used to indicate the duration of an action that will continue until a specific point in the future. For example, "I will have been working here for ten years by next month."

3. Until/till: These expressions are used to indicate the point in time until which an action will continue. For example, "She will have been living in this city until/till she graduates."

4. Throughout: This expression is used to indicate that an action will continue for the entire duration of a specific period of time. For example, "They will have been traveling throughout Europe for three months by the end of the year."

5. All day/week/month/year: These expressions are used to indicate that an action will continue for the entire duration of a specific day, week, month, or year. For example, "I will have been studying all day by the time the exam starts."

6. Since: This expression is used to indicate the starting point of an action that will continue until a specific point in the future. For example, "He will have been working since morning until the evening."

7. Up until now: This expression is used to indicate that an action has been ongoing until the present moment and will continue into the future. For example, "I will have been living in this city up until now."

These time expressions help to provide clarity and context when using the future perfect continuous tense, indicating the duration and continuity of an action in the future.