The document summarizes the use of present and past participles in English grammar. It discusses: 1) Present participles are formed by adding "-ing" to verbs and can function either as part of verbs when used with forms of "to be", or as adjectives when not used with "to be". 2) Past participles are formed by adding "-ed" to verbs and can function either as part of verbs when used with forms of "to be" or "have", or as adjectives when not used with those verbs. 3) Examples are provided to illustrate the different uses of present and past participles as parts of verbs or as adjectives in sentences. PowerPoint