Here's why:
* Verb phrase: A verb phrase is a group of words that acts as a verb. It includes the main verb and any helping verbs (auxiliary verbs).
* Main verb: The main verb is the word that describes the action or state of being. In this case, the main verb is "be".
* Helping verb: The helping verb, "will", helps to form the future tense.
Therefore, the verb phrase is will be.