what is a infinitive and participal pharse

An infinitive phrase is a group of words that uses an infinitive verb (the base form of the verb with the word "to" in front). The infinitive phrase can act as a noun, an adjective, or an adverb in a sentence. For example, in the sentence "I like to play soccer", "to play soccer" is an infinitive phrase.

A participial phrase is a group of words that starts with a participle (a verb form used as an adjective to modify nouns and pronouns) and includes objects and/or modifiers. The participial phrase can act as an adjective in a sentence. For example, in the sentence "Running fast, he won the race", "Running fast" is a participial phrase.