The future in the past is used to refer to something that was the future at some time in the past. As for the simple future forms will, going to and the continuous, there are three future in the past forms: would, was/were going to and was/were + continuous verb. ...
What tense to use with will be?
It is formed using the construction will + be + the present participle (the root verb + -ing). The simple future tense is a verb tense that is used when an action is expected to occur in the future and be completed.
Is would use for future tense?
We have this in the past tense, simple past tense and then, in that past tense thought, we have some idea about the future and we use Would to express that idea about the future. Let's look at some examples of this though. Here, I knew you would help me. ... So we can use Would to talk about future but in the past.