What is the verb in sentence soon both dog and man are frosted with ice?

The verb in the sentence "Soon both dog and man are frosted with ice" is are frosted.

Here's why:

* are: This is the helping verb, indicating present tense.

* frosted: This is the main verb, describing the action of being covered in ice.

Together, "are frosted" make up the verb phrase that describes the action of the sentence.