Question

when can their glory fade ? turn into assertive​

Answer 1

Answer:

Since, given sentence is in form of a question or the form of an interrogative sentence, that's why we need to conform to the given facts for changing it into an assertive form. For changing a sentence we must affirm that their glory will never fade. Hence, the proper sentence would be Their glory can never fade.

Answer 2

Answer:

The glory can never fade.

I think so it's helpful for you ✌️