5.1   Definitions and Functions

   5.1.1   Gerunds 

   5.1.2   Infinitives

   5.1.3   Participles

5.2   Uses of Gerunds

   5.2.1   Gerunds as subject

   5.2.2   Gerunds as direct object

   5.2.3   Gerunds as subject complement

   5.2.4   Gerunds after preposition

   5.2.5   Gerund Phrases

         5.2.5.1   Gerund phrases as subject

         5.2.5.2   Gerund phrases as direct object

         5.2.5.3   Gerund phrases as subject complement

         5.2.5.4   Gerund phrases after preposition

   5.2.6   Gerunds after certain verbs

   5.2.7   Use of nouns vs use of gerunds

5.3   Uses of Infinitives

   5.3.1   Infinitives as noun (subject)

   5.3.2   Infinitives as noun (direct object)

   5.3.3   Infinitives as subject complement (noun, pronoun, or adjective)

   5.3.4   Infinitives as adjective

   5.3.5   Infinitives as adverb

   5.3.6   Infinitive Phrases

         5.3.6.1   Infinitive phrases as noun (subject)

         5.3.6.2   Infinitive phrases as noun (direct object)

         5.3.6.3   Infinitive phrases as subject complement (noun, pronoun or adjective)

         5.3.6.4   Infinitive phrases as adjective

         5.3.6.5   Infinitive phrases as adverb

   5.3.7   Infinitives after certain verbs

   5.3.8   Infinitives and Prepositional Phrases

5.4   To do or to doing?

5.5   Uses of Participles