Answer:
If the Wright Brothers had not flown, America would not have its aviation idols.
Step-by-step explanation:
A verb is one of the parts of speech in English language. Verbs can be defined as any word that describes an action, occurrence, or state of existence. Some examples of verb are dance, sing, walk, play, run, sit, etc.
A verb phrase is simply the part of a sentence that contains both a verb and either an indirect or direct object.
In this scenario, the sentence that contains two verb phrases is; "If the Wright Brothers had not flown, America would not have its aviation idols."
The two verb phrases are; "had not flown" and "not have."