Compléter Gerunds and Infinitives Fill in the BlanksVersion en ligne Test your knowledge of gerunds and infinitives by completing sentences with the correct forms. par Geraldine Díaz 1 ing subjects complements base form verb phrase nouns English grammar verbs objects infinitives 'to' Gerunds and are forms of that function as . Gerunds end in - and infinitives are the of the verb preceded by . They can be used as , , , or as part of a . Knowing when to use gerunds and infinitives correctly is essential for mastering .