Past Future Continuous Tense
Past Future Continuous tells an action would be in progress in the past.
(+) S + was/were + going to be + Verb-ing
ex: She was going to be Cooking this morning
(-) S + was/were + not + going to be + Verb-ing
ex: She wasn’t going to be cooking this morning
(?) Was/were + S + going to be + Verb-ing
ex: was she going to be cooking this morning?
time signals for this tense is time in the past like, this morning, yesterday, last night, last week and so on.