will have been

verb phrase

1. The future perfect form of be, used to describe a state, identity, location, or situation that will exist before or at a particular future time.

   B1

   will have been + noun, adjective, or prepositional phrase

   • "By next month, I will have been here for a year."B1
   • "By 2030, she will have been a doctor for twenty years."B2
   • "They will have been married for ten years by the time of their anniversary."B2

2. An auxiliary form used with a present participle to show that an activity will have continued for a period of time up to a future point.

   B2

   will have been + verb-ing; future perfect continuous

   • "At noon, we will have been driving for five hours."B1
   • "By the end of the project, the team will have been working together for nearly a year."B2

3. A form used to make a confident guess about a past state or situation.

   C1

   will have been + noun, adjective, or prepositional phrase

   • "He will have been very tired after the long flight."B2
   • "The sudden decision will have been difficult for everyone involved."C1