Verbal phrases are verbals and any of the verb form's modifiers, objects or complements. The three types of verbal phrases are participial, gerund, and infinitive phrases. Participial Phrases are present participles or past participles and any modifiers, objects or complements.
Participial phrases contain verbs which act as adjectives in a sentence.
Singing very softly, the boy lulled his baby brother to sleep. The girls, frightened by the police car's headlights , quickly came down from the school's roof. Gerund Phrases contain verbs ending in -ing and any modifiers, objects, or complements. Gerund phrases act as nouns in a sentence. They can act as the subject or object of a verb, as a predicate nominative, and as the object of a preposition.