A participial phrase is a phrase introduced by a participle that modifies a noun or pronoun, and includes the participle along with any modifiers, objects, or predicate words. Examples given include "The speck of night, flickering in the blackness of the night, was like a star" and "Gripping the rigged trunk, he climbed the large coconut palm." When a participial phrase introduces a sentence, it should be followed by a comma.