Tom will have a moment of great inspiration.

The boldface verbs in the sentence use indicative mood. Since the interrogative mood of a sentence always asks a question, we can change the statement “Tom will have a moment of great inspiration” into a question. To do this, we can flip the helping verb, which in this case is will, to the front of the sentence so that it now reads “Will Tom have a moment of great inspiration?” This sentence now asks a question, therefore it now uses interrogative mood.

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i'm a frog i'm a frog i read about frogs i breath thee frogs the frogs are great but not me