***** NOT A TEACHER *****
1. We are late every day. (present simple)
2. We were late every day last week. (past simple)
3. We will / shall be late every day next week, too! (I removed the "not" for easier analysis.)
a. "In traditional grammar, the shall/will future is sometimes called the simple future, but in more modern grammar this is analyzed as a complex verb phrase."
i. A complex verb phrase is "any verb phrase (except a one-word one)."
(a) Only my comment: So I believe that "will/shall be" is analyzed as the modal "will/shall" + the verb "be."
-- Chalker and Weiner, The Oxford Dictionary of English Grammar (1994).
Student or Learner